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Finding the Third Proportional to 276,552 and 439,738

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Solution

The third proportional to 276,552 and 439,738 is: 699,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,552 : 439,738 = 439,738 : x
  2. Step 2: Convert to fraction form
    276,552/439,738 = 439,738/x
  3. Step 3: Cross multiply
    276,552x = 439,738 × 439,738
  4. Step 4: Simplify right side
    276,552x = 193,369,508,644
  5. Step 5: Solve for x
    x = 193,369,508,644/276,552
  6. Step 6: Final answer
    x = 699,215.73

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.