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Finding the Fourth Proportional to 501,512.78, 752,274.04 and 127,535.78

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Solution

The fourth proportional to 501,512.78, 752,274.04 and 127,535.78 is: 191,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,512.78 : 752,274.04 = 127,535.78 : x
  2. Step 2: Convert to fraction form
    501,512.78/752,274.04 = 127,535.78/x
  3. Step 3: Cross multiply
    501,512.78x = 752,274.04 × 127,535.78
  4. Step 4: Simplify right side
    501,512.78x = 95,941,856,465.15
  5. Step 5: Solve for x
    x = 95,941,856,465.15/501,512.78
  6. Step 6: Final answer
    x = 191,304.91

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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.