Finding the Fourth Proportional to 625,116.63, 862,660.17 and 338,637.90
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Solution
The fourth proportional to 625,116.63, 862,660.17 and 338,637.90 is: 467,319.88
Step by Step Solution
- Step 1: Write the proportion equation
625,116.63 : 862,660.17 = 338,637.90 : x - Step 2: Convert to fraction form
625,116.63/862,660.17 = 338,637.90/x - Step 3: Cross multiply
625,116.63x = 862,660.17 × 338,637.90 - Step 4: Simplify right side
625,116.63x = 292,129,428,382.44 - Step 5: Solve for x
x = 292,129,428,382.44/625,116.63 - Step 6: Final answer
x = 467,319.88
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1.5x scale
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.