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Finding the Fourth Proportional to 773.33, 1,160.37 and 480.76

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Solution

The fourth proportional to 773.33, 1,160.37 and 480.76 is: 721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.33 : 1,160.37 = 480.76 : x
  2. Step 2: Convert to fraction form
    773.33/1,160.37 = 480.76/x
  3. Step 3: Cross multiply
    773.33x = 1,160.37 × 480.76
  4. Step 4: Simplify right side
    773.33x = 557,856.58
  5. Step 5: Solve for x
    x = 557,856.58/773.33
  6. Step 6: Final answer
    x = 721.37

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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.