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Finding the Fourth Proportional to 667,251.60, 1,001,023.20 and 330,453.60

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Solution

The fourth proportional to 667,251.60, 1,001,023.20 and 330,453.60 is: 495,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,251.60 : 1,001,023.20 = 330,453.60 : x
  2. Step 2: Convert to fraction form
    667,251.60/1,001,023.20 = 330,453.60/x
  3. Step 3: Cross multiply
    667,251.60x = 1,001,023.20 × 330,453.60
  4. Step 4: Simplify right side
    667,251.60x = 330,791,720,123.52
  5. Step 5: Solve for x
    x = 330,791,720,123.52/667,251.60
  6. Step 6: Final answer
    x = 495,752.61

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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.