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Finding the Third Proportional to 781.03 and 1,701.56

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Solution

The third proportional to 781.03 and 1,701.56 is: 3,707.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781.03 : 1,701.56 = 1,701.56 : x
  2. Step 2: Convert to fraction form
    781.03/1,701.56 = 1,701.56/x
  3. Step 3: Cross multiply
    781.03x = 1,701.56 × 1,701.56
  4. Step 4: Simplify right side
    781.03x = 2,895,314.94
  5. Step 5: Solve for x
    x = 2,895,314.94/781.03
  6. Step 6: Final answer
    x = 3,707.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.