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Finding the Fourth Proportional to 765,866.16, 1,149,324.12 and 267,230.16

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Solution

The fourth proportional to 765,866.16, 1,149,324.12 and 267,230.16 is: 401,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,866.16 : 1,149,324.12 = 267,230.16 : x
  2. Step 2: Convert to fraction form
    765,866.16/1,149,324.12 = 267,230.16/x
  3. Step 3: Cross multiply
    765,866.16x = 1,149,324.12 × 267,230.16
  4. Step 4: Simplify right side
    765,866.16x = 307,134,068,479.46
  5. Step 5: Solve for x
    x = 307,134,068,479.46/765,866.16
  6. Step 6: Final answer
    x = 401,028.38

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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.