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Finding the Third Proportional to 721,766 and 1,550,149

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Solution

The third proportional to 721,766 and 1,550,149 is: 3,329,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,766 : 1,550,149 = 1,550,149 : x
  2. Step 2: Convert to fraction form
    721,766/1,550,149 = 1,550,149/x
  3. Step 3: Cross multiply
    721,766x = 1,550,149 × 1,550,149
  4. Step 4: Simplify right side
    721,766x = 2,402,961,922,201
  5. Step 5: Solve for x
    x = 2,402,961,922,201/721,766
  6. Step 6: Final answer
    x = 3,329,281.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.