Finding the Fourth Proportional to 679,171.91, 937,202.40 and 392,710.55
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Solution
The fourth proportional to 679,171.91, 937,202.40 and 392,710.55 is: 541,908.85
Step by Step Solution
- Step 1: Write the proportion equation
679,171.91 : 937,202.40 = 392,710.55 : x - Step 2: Convert to fraction form
679,171.91/937,202.40 = 392,710.55/x - Step 3: Cross multiply
679,171.91x = 937,202.40 × 392,710.55 - Step 4: Simplify right side
679,171.91x = 368,049,265,279.31 - Step 5: Solve for x
x = 368,049,265,279.31/679,171.91 - Step 6: Final answer
x = 541,908.85
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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.