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Finding the Third Proportional to 622.83 and 1,286.16

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Solution

The third proportional to 622.83 and 1,286.16 is: 2,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.83 : 1,286.16 = 1,286.16 : x
  2. Step 2: Convert to fraction form
    622.83/1,286.16 = 1,286.16/x
  3. Step 3: Cross multiply
    622.83x = 1,286.16 × 1,286.16
  4. Step 4: Simplify right side
    622.83x = 1,654,197.90
  5. Step 5: Solve for x
    x = 1,654,197.90/622.83
  6. Step 6: Final answer
    x = 2,655.95

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.