Finding the Fourth Proportional to 711,655.13, 981,987.09 and 425,114.39
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Solution
The fourth proportional to 711,655.13, 981,987.09 and 425,114.39 is: 586,599.92
Step by Step Solution
- Step 1: Write the proportion equation
711,655.13 : 981,987.09 = 425,114.39 : x - Step 2: Convert to fraction form
711,655.13/981,987.09 = 425,114.39/x - Step 3: Cross multiply
711,655.13x = 981,987.09 × 425,114.39 - Step 4: Simplify right side
711,655.13x = 417,456,842,753.23 - Step 5: Solve for x
x = 417,456,842,753.23/711,655.13 - Step 6: Final answer
x = 586,599.92
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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.