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Finding the Third Proportional to 409,474 and 886,020

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Solution

The third proportional to 409,474 and 886,020 is: 1,917,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,474 : 886,020 = 886,020 : x
  2. Step 2: Convert to fraction form
    409,474/886,020 = 886,020/x
  3. Step 3: Cross multiply
    409,474x = 886,020 × 886,020
  4. Step 4: Simplify right side
    409,474x = 785,031,440,400
  5. Step 5: Solve for x
    x = 785,031,440,400/409,474
  6. Step 6: Final answer
    x = 1,917,170.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.