Finding the Fourth Proportional to 577,129.80, 865,694.70 and 437,161.80
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Solution
The fourth proportional to 577,129.80, 865,694.70 and 437,161.80 is: 655,742.70
Step by Step Solution
- Step 1: Write the proportion equation
577,129.80 : 865,694.70 = 437,161.80 : x - Step 2: Convert to fraction form
577,129.80/865,694.70 = 437,161.80/x - Step 3: Cross multiply
577,129.80x = 865,694.70 × 437,161.80 - Step 4: Simplify right side
577,129.80x = 378,448,653,302.46 - Step 5: Solve for x
x = 378,448,653,302.46/577,129.80 - Step 6: Final answer
x = 655,742.70
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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.