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Finding the Third Proportional to 279,658 and 605,972

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Solution

The third proportional to 279,658 and 605,972 is: 1,313,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,658 : 605,972 = 605,972 : x
  2. Step 2: Convert to fraction form
    279,658/605,972 = 605,972/x
  3. Step 3: Cross multiply
    279,658x = 605,972 × 605,972
  4. Step 4: Simplify right side
    279,658x = 367,202,064,784
  5. Step 5: Solve for x
    x = 367,202,064,784/279,658
  6. Step 6: Final answer
    x = 1,313,039.73

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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.