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Finding the Third Proportional to 280,591 and 617,234

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Solution

The third proportional to 280,591 and 617,234 is: 1,357,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,591 : 617,234 = 617,234 : x
  2. Step 2: Convert to fraction form
    280,591/617,234 = 617,234/x
  3. Step 3: Cross multiply
    280,591x = 617,234 × 617,234
  4. Step 4: Simplify right side
    280,591x = 380,977,810,756
  5. Step 5: Solve for x
    x = 380,977,810,756/280,591
  6. Step 6: Final answer
    x = 1,357,769.18

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.