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Finding the Fourth Proportional to 752.41, 1,131.14 and 616.47

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Solution

The fourth proportional to 752.41, 1,131.14 and 616.47 is: 926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.41 : 1,131.14 = 616.47 : x
  2. Step 2: Convert to fraction form
    752.41/1,131.14 = 616.47/x
  3. Step 3: Cross multiply
    752.41x = 1,131.14 × 616.47
  4. Step 4: Simplify right side
    752.41x = 697,305.14
  5. Step 5: Solve for x
    x = 697,305.14/752.41
  6. Step 6: Final answer
    x = 926.76

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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.