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Finding the Fourth Proportional to 833.73, 1,250.13 and 742.59

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Solution

The fourth proportional to 833.73, 1,250.13 and 742.59 is: 1,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.73 : 1,250.13 = 742.59 : x
  2. Step 2: Convert to fraction form
    833.73/1,250.13 = 742.59/x
  3. Step 3: Cross multiply
    833.73x = 1,250.13 × 742.59
  4. Step 4: Simplify right side
    833.73x = 928,334.04
  5. Step 5: Solve for x
    x = 928,334.04/833.73
  6. Step 6: Final answer
    x = 1,113.47

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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.