Finding the Fourth Proportional to 493,581.75, 740,417.80 and 138,593.38
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Solution
The fourth proportional to 493,581.75, 740,417.80 and 138,593.38 is: 207,902.75
Step by Step Solution
- Step 1: Write the proportion equation
493,581.75 : 740,417.80 = 138,593.38 : x - Step 2: Convert to fraction form
493,581.75/740,417.80 = 138,593.38/x - Step 3: Cross multiply
493,581.75x = 740,417.80 × 138,593.38 - Step 4: Simplify right side
493,581.75x = 102,617,001,812.08 - Step 5: Solve for x
x = 102,617,001,812.08/493,581.75 - Step 6: Final answer
x = 207,902.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.