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Finding the Fourth Proportional to 872,505.61, 1,308,758.42 and 273,469.92

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Solution

The fourth proportional to 872,505.61, 1,308,758.42 and 273,469.92 is: 410,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,505.61 : 1,308,758.42 = 273,469.92 : x
  2. Step 2: Convert to fraction form
    872,505.61/1,308,758.42 = 273,469.92/x
  3. Step 3: Cross multiply
    872,505.61x = 1,308,758.42 × 273,469.92
  4. Step 4: Simplify right side
    872,505.61x = 357,906,060,416.73
  5. Step 5: Solve for x
    x = 357,906,060,416.73/872,505.61
  6. Step 6: Final answer
    x = 410,204.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.