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Finding the Third Proportional to 812.53 and 1,249.17

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Solution

The third proportional to 812.53 and 1,249.17 is: 1,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    812.53 : 1,249.17 = 1,249.17 : x
  2. Step 2: Convert to fraction form
    812.53/1,249.17 = 1,249.17/x
  3. Step 3: Cross multiply
    812.53x = 1,249.17 × 1,249.17
  4. Step 4: Simplify right side
    812.53x = 1,560,430.37
  5. Step 5: Solve for x
    x = 1,560,430.37/812.53
  6. Step 6: Final answer
    x = 1,920.46

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.