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Finding the Third Proportional to 717.51 and 1,108.25

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Solution

The third proportional to 717.51 and 1,108.25 is: 1,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.51 : 1,108.25 = 1,108.25 : x
  2. Step 2: Convert to fraction form
    717.51/1,108.25 = 1,108.25/x
  3. Step 3: Cross multiply
    717.51x = 1,108.25 × 1,108.25
  4. Step 4: Simplify right side
    717.51x = 1,228,217.99
  5. Step 5: Solve for x
    x = 1,228,217.99/717.51
  6. Step 6: Final answer
    x = 1,711.78

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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.