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Finding the Fourth Proportional to 641,881.76, 962,912.24 and 267,819.04

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Solution

The fourth proportional to 641,881.76, 962,912.24 and 267,819.04 is: 401,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,881.76 : 962,912.24 = 267,819.04 : x
  2. Step 2: Convert to fraction form
    641,881.76/962,912.24 = 267,819.04/x
  3. Step 3: Cross multiply
    641,881.76x = 962,912.24 × 267,819.04
  4. Step 4: Simplify right side
    641,881.76x = 257,886,231,721.05
  5. Step 5: Solve for x
    x = 257,886,231,721.05/641,881.76
  6. Step 6: Final answer
    x = 401,765.94

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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.