Finding the Fourth Proportional to 415,098.16, 622,697.11 and 392,397.74
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Solution
The fourth proportional to 415,098.16, 622,697.11 and 392,397.74 is: 588,643.75
Step by Step Solution
- Step 1: Write the proportion equation
415,098.16 : 622,697.11 = 392,397.74 : x - Step 2: Convert to fraction form
415,098.16/622,697.11 = 392,397.74/x - Step 3: Cross multiply
415,098.16x = 622,697.11 × 392,397.74 - Step 4: Simplify right side
415,098.16x = 244,344,938,668.53 - Step 5: Solve for x
x = 244,344,938,668.53/415,098.16 - Step 6: Final answer
x = 588,643.75
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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.