Finding the Fourth Proportional to 392,495.36, 588,387.56 and 272,608.92
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Solution
The fourth proportional to 392,495.36, 588,387.56 and 272,608.92 is: 408,666.48
Step by Step Solution
- Step 1: Write the proportion equation
392,495.36 : 588,387.56 = 272,608.92 : x - Step 2: Convert to fraction form
392,495.36/588,387.56 = 272,608.92/x - Step 3: Cross multiply
392,495.36x = 588,387.56 × 272,608.92 - Step 4: Simplify right side
392,495.36x = 160,399,695,909.99 - Step 5: Solve for x
x = 160,399,695,909.99/392,495.36 - Step 6: Final answer
x = 408,666.48
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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.