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Finding the Third Proportional to 791.11 and 1,200.89

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Solution

The third proportional to 791.11 and 1,200.89 is: 1,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.11 : 1,200.89 = 1,200.89 : x
  2. Step 2: Convert to fraction form
    791.11/1,200.89 = 1,200.89/x
  3. Step 3: Cross multiply
    791.11x = 1,200.89 × 1,200.89
  4. Step 4: Simplify right side
    791.11x = 1,442,138.29
  5. Step 5: Solve for x
    x = 1,442,138.29/791.11
  6. Step 6: Final answer
    x = 1,822.93

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.