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Finding the Fourth Proportional to 994.52, 1,372.88 and 733.30

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Solution

The fourth proportional to 994.52, 1,372.88 and 733.30 is: 1,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.52 : 1,372.88 = 733.30 : x
  2. Step 2: Convert to fraction form
    994.52/1,372.88 = 733.30/x
  3. Step 3: Cross multiply
    994.52x = 1,372.88 × 733.30
  4. Step 4: Simplify right side
    994.52x = 1,006,732.90
  5. Step 5: Solve for x
    x = 1,006,732.90/994.52
  6. Step 6: Final answer
    x = 1,012.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.