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Finding the Third Proportional to 720.50 and 949.13

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Solution

The third proportional to 720.50 and 949.13 is: 1,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720.50 : 949.13 = 949.13 : x
  2. Step 2: Convert to fraction form
    720.50/949.13 = 949.13/x
  3. Step 3: Cross multiply
    720.50x = 949.13 × 949.13
  4. Step 4: Simplify right side
    720.50x = 900,838.27
  5. Step 5: Solve for x
    x = 900,838.27/720.50
  6. Step 6: Final answer
    x = 1,250.30

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.