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Finding the Third Proportional to 381,436 and 560,484

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Solution

The third proportional to 381,436 and 560,484 is: 823,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,436 : 560,484 = 560,484 : x
  2. Step 2: Convert to fraction form
    381,436/560,484 = 560,484/x
  3. Step 3: Cross multiply
    381,436x = 560,484 × 560,484
  4. Step 4: Simplify right side
    381,436x = 314,142,314,256
  5. Step 5: Solve for x
    x = 314,142,314,256/381,436
  6. Step 6: Final answer
    x = 823,578.04

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.