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Finding the Fourth Proportional to 408,759.85, 564,092.34 and 227,479.42

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Solution

The fourth proportional to 408,759.85, 564,092.34 and 227,479.42 is: 313,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,759.85 : 564,092.34 = 227,479.42 : x
  2. Step 2: Convert to fraction form
    408,759.85/564,092.34 = 227,479.42/x
  3. Step 3: Cross multiply
    408,759.85x = 564,092.34 × 227,479.42
  4. Step 4: Simplify right side
    408,759.85x = 128,319,398,329.64
  5. Step 5: Solve for x
    x = 128,319,398,329.64/408,759.85
  6. Step 6: Final answer
    x = 313,923.68

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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.