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Finding the Third Proportional to 912,819.38 and 1,420,902

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Solution

The third proportional to 912,819.38 and 1,420,902 is: 2,211,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,819.38 : 1,420,902 = 1,420,902 : x
  2. Step 2: Convert to fraction form
    912,819.38/1,420,902 = 1,420,902/x
  3. Step 3: Cross multiply
    912,819.38x = 1,420,902 × 1,420,902
  4. Step 4: Simplify right side
    912,819.38x = 2,018,962,493,604
  5. Step 5: Solve for x
    x = 2,018,962,493,604/912,819.38
  6. Step 6: Final answer
    x = 2,211,787.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.