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Finding the Third Proportional to 523.13 and 864.56

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Solution

The third proportional to 523.13 and 864.56 is: 1,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.13 : 864.56 = 864.56 : x
  2. Step 2: Convert to fraction form
    523.13/864.56 = 864.56/x
  3. Step 3: Cross multiply
    523.13x = 864.56 × 864.56
  4. Step 4: Simplify right side
    523.13x = 747,468.32
  5. Step 5: Solve for x
    x = 747,468.32/523.13
  6. Step 6: Final answer
    x = 1,428.85

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.