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Finding the Third Proportional to 655,149 and 1,389,027

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Solution

The third proportional to 655,149 and 1,389,027 is: 2,944,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,149 : 1,389,027 = 1,389,027 : x
  2. Step 2: Convert to fraction form
    655,149/1,389,027 = 1,389,027/x
  3. Step 3: Cross multiply
    655,149x = 1,389,027 × 1,389,027
  4. Step 4: Simplify right side
    655,149x = 1,929,396,006,729
  5. Step 5: Solve for x
    x = 1,929,396,006,729/655,149
  6. Step 6: Final answer
    x = 2,944,972.83

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.