Finding the Fourth Proportional to 799,995.60, 1,201,375.80 and 426,747.60
Calculator
Solution
The fourth proportional to 799,995.60, 1,201,375.80 and 426,747.60 is: 640,858.82
Step by Step Solution
- Step 1: Write the proportion equation
799,995.60 : 1,201,375.80 = 426,747.60 : x - Step 2: Convert to fraction form
799,995.60/1,201,375.80 = 426,747.60/x - Step 3: Cross multiply
799,995.60x = 1,201,375.80 × 426,747.60 - Step 4: Simplify right side
799,995.60x = 512,684,239,348.08 - Step 5: Solve for x
x = 512,684,239,348.08/799,995.60 - Step 6: Final answer
x = 640,858.82
Related Problems
Find fourth proportional to 399,997.80, 600,687.90 and 213,373.80
Half scale
Find fourth proportional to 1,599,991.20, 2,402,751.60 and 853,495.20
Double scale
Find fourth proportional to 799,996.60, 1,201,377.30 and 426,748.60
Similar ratio
Find fourth proportional to 1,199,993.40, 1,802,063.70 and 640,121.40
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.