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Finding the Third Proportional to 257,577 and 560,915

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Solution

The third proportional to 257,577 and 560,915 is: 1,221,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,577 : 560,915 = 560,915 : x
  2. Step 2: Convert to fraction form
    257,577/560,915 = 560,915/x
  3. Step 3: Cross multiply
    257,577x = 560,915 × 560,915
  4. Step 4: Simplify right side
    257,577x = 314,625,637,225
  5. Step 5: Solve for x
    x = 314,625,637,225/257,577
  6. Step 6: Final answer
    x = 1,221,481.88

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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.