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Finding the Third Proportional to 397,302 and 862,330

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Solution

The third proportional to 397,302 and 862,330 is: 1,871,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,302 : 862,330 = 862,330 : x
  2. Step 2: Convert to fraction form
    397,302/862,330 = 862,330/x
  3. Step 3: Cross multiply
    397,302x = 862,330 × 862,330
  4. Step 4: Simplify right side
    397,302x = 743,613,028,900
  5. Step 5: Solve for x
    x = 743,613,028,900/397,302
  6. Step 6: Final answer
    x = 1,871,656.90

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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.