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Finding the Third Proportional to 717.56 and 1,549.88

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Solution

The third proportional to 717.56 and 1,549.88 is: 3,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.56 : 1,549.88 = 1,549.88 : x
  2. Step 2: Convert to fraction form
    717.56/1,549.88 = 1,549.88/x
  3. Step 3: Cross multiply
    717.56x = 1,549.88 × 1,549.88
  4. Step 4: Simplify right side
    717.56x = 2,402,112.52
  5. Step 5: Solve for x
    x = 2,402,112.52/717.56
  6. Step 6: Final answer
    x = 3,347.60

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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.