Finding the Fourth Proportional to 498,737.40, 688,261.99 and 283,891.29
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Solution
The fourth proportional to 498,737.40, 688,261.99 and 283,891.29 is: 391,772.47
Step by Step Solution
- Step 1: Write the proportion equation
498,737.40 : 688,261.99 = 283,891.29 : x - Step 2: Convert to fraction form
498,737.40/688,261.99 = 283,891.29/x - Step 3: Cross multiply
498,737.40x = 688,261.99 × 283,891.29 - Step 4: Simplify right side
498,737.40x = 195,391,580,757.76 - Step 5: Solve for x
x = 195,391,580,757.76/498,737.40 - Step 6: Final answer
x = 391,772.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.