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Finding the Fourth Proportional to 801.38, 1,200.48 and 733.70

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Solution

The fourth proportional to 801.38, 1,200.48 and 733.70 is: 1,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    801.38 : 1,200.48 = 733.70 : x
  2. Step 2: Convert to fraction form
    801.38/1,200.48 = 733.70/x
  3. Step 3: Cross multiply
    801.38x = 1,200.48 × 733.70
  4. Step 4: Simplify right side
    801.38x = 880,792.18
  5. Step 5: Solve for x
    x = 880,792.18/801.38
  6. Step 6: Final answer
    x = 1,099.09

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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.