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Finding the Third Proportional to 272,612 and 558,819

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Solution

The third proportional to 272,612 and 558,819 is: 1,145,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,612 : 558,819 = 558,819 : x
  2. Step 2: Convert to fraction form
    272,612/558,819 = 558,819/x
  3. Step 3: Cross multiply
    272,612x = 558,819 × 558,819
  4. Step 4: Simplify right side
    272,612x = 312,278,674,761
  5. Step 5: Solve for x
    x = 312,278,674,761/272,612
  6. Step 6: Final answer
    x = 1,145,505.97

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.