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Finding the Fourth Proportional to 641,141.48, 961,799.70 and 267,077

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Solution

The fourth proportional to 641,141.48, 961,799.70 and 267,077 is: 400,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,141.48 : 961,799.70 = 267,077 : x
  2. Step 2: Convert to fraction form
    641,141.48/961,799.70 = 267,077/x
  3. Step 3: Cross multiply
    641,141.48x = 961,799.70 × 267,077
  4. Step 4: Simplify right side
    641,141.48x = 256,874,578,476.90
  5. Step 5: Solve for x
    x = 256,874,578,476.90/641,141.48
  6. Step 6: Final answer
    x = 400,651.94

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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.