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Finding the Third Proportional to 613.88 and 1,324.99

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Solution

The third proportional to 613.88 and 1,324.99 is: 2,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.88 : 1,324.99 = 1,324.99 : x
  2. Step 2: Convert to fraction form
    613.88/1,324.99 = 1,324.99/x
  3. Step 3: Cross multiply
    613.88x = 1,324.99 × 1,324.99
  4. Step 4: Simplify right side
    613.88x = 1,755,604.30
  5. Step 5: Solve for x
    x = 1,755,604.30/613.88
  6. Step 6: Final answer
    x = 2,859.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.