Finding the Fourth Proportional to 625,079.07, 862,434.11 and 392,531.09
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Solution
The fourth proportional to 625,079.07, 862,434.11 and 392,531.09 is: 541,583.00
Step by Step Solution
- Step 1: Write the proportion equation
625,079.07 : 862,434.11 = 392,531.09 : x - Step 2: Convert to fraction form
625,079.07/862,434.11 = 392,531.09/x - Step 3: Cross multiply
625,079.07x = 862,434.11 × 392,531.09 - Step 4: Simplify right side
625,079.07x = 338,532,194,976.65 - Step 5: Solve for x
x = 338,532,194,976.65/625,079.07 - Step 6: Final answer
x = 541,583.00
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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.