Finding the Fourth Proportional to 625,161.38, 862,717.92 and 338,679.41
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Solution
The fourth proportional to 625,161.38, 862,717.92 and 338,679.41 is: 467,374.99
Step by Step Solution
- Step 1: Write the proportion equation
625,161.38 : 862,717.92 = 338,679.41 : x - Step 2: Convert to fraction form
625,161.38/862,717.92 = 338,679.41/x - Step 3: Cross multiply
625,161.38x = 862,717.92 × 338,679.41 - Step 4: Simplify right side
625,161.38x = 292,184,796,142.03 - Step 5: Solve for x
x = 292,184,796,142.03/625,161.38 - Step 6: Final answer
x = 467,374.99
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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.