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Finding the Fourth Proportional to 646,883.28, 970,512 and 267,733.92

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Solution

The fourth proportional to 646,883.28, 970,512 and 267,733.92 is: 401,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,883.28 : 970,512 = 267,733.92 : x
  2. Step 2: Convert to fraction form
    646,883.28/970,512 = 267,733.92/x
  3. Step 3: Cross multiply
    646,883.28x = 970,512 × 267,733.92
  4. Step 4: Simplify right side
    646,883.28x = 259,838,982,167.04
  5. Step 5: Solve for x
    x = 259,838,982,167.04/646,883.28
  6. Step 6: Final answer
    x = 401,678.31

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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.