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Finding the Third Proportional to 644,831 and 1,366,470

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Solution

The third proportional to 644,831 and 1,366,470 is: 2,895,704.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,831 : 1,366,470 = 1,366,470 : x
  2. Step 2: Convert to fraction form
    644,831/1,366,470 = 1,366,470/x
  3. Step 3: Cross multiply
    644,831x = 1,366,470 × 1,366,470
  4. Step 4: Simplify right side
    644,831x = 1,867,240,260,900
  5. Step 5: Solve for x
    x = 1,867,240,260,900/644,831
  6. Step 6: Final answer
    x = 2,895,704.86

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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.