Finding the Fourth Proportional to 438,916.43, 658,275.99 and 261,473.87
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Solution
The fourth proportional to 438,916.43, 658,275.99 and 261,473.87 is: 392,152.03
Step by Step Solution
- Step 1: Write the proportion equation
438,916.43 : 658,275.99 = 261,473.87 : x - Step 2: Convert to fraction form
438,916.43/658,275.99 = 261,473.87/x - Step 3: Cross multiply
438,916.43x = 658,275.99 × 261,473.87 - Step 4: Simplify right side
438,916.43x = 172,121,967,342.00 - Step 5: Solve for x
x = 172,121,967,342.00/438,916.43 - Step 6: Final answer
x = 392,152.03
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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.