Finding the Fourth Proportional to 926,331.80, 1,389,497.70 and 864,123.80
Calculator
Solution
The fourth proportional to 926,331.80, 1,389,497.70 and 864,123.80 is: 1,296,185.70
Step by Step Solution
- Step 1: Write the proportion equation
926,331.80 : 1,389,497.70 = 864,123.80 : x - Step 2: Convert to fraction form
926,331.80/1,389,497.70 = 864,123.80/x - Step 3: Cross multiply
926,331.80x = 1,389,497.70 × 864,123.80 - Step 4: Simplify right side
926,331.80x = 1,200,698,032,615.26 - Step 5: Solve for x
x = 1,200,698,032,615.26/926,331.80 - Step 6: Final answer
x = 1,296,185.70
Related Problems
Find fourth proportional to 463,165.90, 694,748.85 and 432,061.90
Half scale
Find fourth proportional to 1,852,663.60, 2,778,995.40 and 1,728,247.60
Double scale
Find fourth proportional to 926,332.80, 1,389,499.20 and 864,124.80
Similar ratio
Find fourth proportional to 1,389,497.70, 2,084,246.55 and 1,296,185.70
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.