Finding the Fourth Proportional to 705,994,798.40, 1,058,992,197.60 and 511,495,265.60
Calculator
Solution
The fourth proportional to 705,994,798.40, 1,058,992,197.60 and 511,495,265.60 is: 767,242,898.40
Step by Step Solution
- Step 1: Write the proportion equation
705,994,798.40 : 1,058,992,197.60 = 511,495,265.60 : x - Step 2: Convert to fraction form
705,994,798.40/1,058,992,197.60 = 511,495,265.60/x - Step 3: Cross multiply
705,994,798.40x = 1,058,992,197.60 × 511,495,265.60 - Step 4: Simplify right side
705,994,798.40x = 541,669,495,379,739,712 - Step 5: Solve for x
x = 541,669,495,379,739,712/705,994,798.40 - Step 6: Final answer
x = 767,242,898.40
Related Problems
Find fourth proportional to 352,997,399.20, 529,496,098.80 and 255,747,632.80
Half scale
Find fourth proportional to 1,411,989,596.80, 2,117,984,395.20 and 1,022,990,531.20
Double scale
Find fourth proportional to 705,994,799.40, 1,058,992,199.10 and 511,495,266.60
Similar ratio
Find fourth proportional to 1,058,992,197.60, 1,588,488,296.40 and 767,242,898.40
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.