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Finding the Third Proportional to 621,482 and 1,353,680

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Solution

The third proportional to 621,482 and 1,353,680 is: 2,948,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,482 : 1,353,680 = 1,353,680 : x
  2. Step 2: Convert to fraction form
    621,482/1,353,680 = 1,353,680/x
  3. Step 3: Cross multiply
    621,482x = 1,353,680 × 1,353,680
  4. Step 4: Simplify right side
    621,482x = 1,832,449,542,400
  5. Step 5: Solve for x
    x = 1,832,449,542,400/621,482
  6. Step 6: Final answer
    x = 2,948,515.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.