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Finding the Third Proportional to 257,572 and 558,019

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Solution

The third proportional to 257,572 and 558,019 is: 1,208,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,572 : 558,019 = 558,019 : x
  2. Step 2: Convert to fraction form
    257,572/558,019 = 558,019/x
  3. Step 3: Cross multiply
    257,572x = 558,019 × 558,019
  4. Step 4: Simplify right side
    257,572x = 311,385,204,361
  5. Step 5: Solve for x
    x = 311,385,204,361/257,572
  6. Step 6: Final answer
    x = 1,208,924.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.