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Finding the Fourth Proportional to 635,442.61, 876,691.58 and 406,134.12

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Solution

The fourth proportional to 635,442.61, 876,691.58 and 406,134.12 is: 560,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,442.61 : 876,691.58 = 406,134.12 : x
  2. Step 2: Convert to fraction form
    635,442.61/876,691.58 = 406,134.12/x
  3. Step 3: Cross multiply
    635,442.61x = 876,691.58 × 406,134.12
  4. Step 4: Simplify right side
    635,442.61x = 356,054,363,354.71
  5. Step 5: Solve for x
    x = 356,054,363,354.71/635,442.61
  6. Step 6: Final answer
    x = 560,324.97

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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.