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Finding the Third Proportional to 310,667 and 665,578

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Solution

The third proportional to 310,667 and 665,578 is: 1,425,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,667 : 665,578 = 665,578 : x
  2. Step 2: Convert to fraction form
    310,667/665,578 = 665,578/x
  3. Step 3: Cross multiply
    310,667x = 665,578 × 665,578
  4. Step 4: Simplify right side
    310,667x = 442,994,074,084
  5. Step 5: Solve for x
    x = 442,994,074,084/310,667
  6. Step 6: Final answer
    x = 1,425,945.06

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.