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Finding the Fourth Proportional to 408,879.39, 564,253.52 and 227,587.42

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Solution

The fourth proportional to 408,879.39, 564,253.52 and 227,587.42 is: 314,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,879.39 : 564,253.52 = 227,587.42 : x
  2. Step 2: Convert to fraction form
    408,879.39/564,253.52 = 227,587.42/x
  3. Step 3: Cross multiply
    408,879.39x = 564,253.52 × 227,587.42
  4. Step 4: Simplify right side
    408,879.39x = 128,417,002,842.72
  5. Step 5: Solve for x
    x = 128,417,002,842.72/408,879.39
  6. Step 6: Final answer
    x = 314,070.62

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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.