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Finding the Third Proportional to 412,884 and 631,170

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Solution

The third proportional to 412,884 and 631,170 is: 964,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,884 : 631,170 = 631,170 : x
  2. Step 2: Convert to fraction form
    412,884/631,170 = 631,170/x
  3. Step 3: Cross multiply
    412,884x = 631,170 × 631,170
  4. Step 4: Simplify right side
    412,884x = 398,375,568,900
  5. Step 5: Solve for x
    x = 398,375,568,900/412,884
  6. Step 6: Final answer
    x = 964,860.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.