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Finding the Third Proportional to 413,926 and 909,134

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Solution

The third proportional to 413,926 and 909,134 is: 1,996,793.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,926 : 909,134 = 909,134 : x
  2. Step 2: Convert to fraction form
    413,926/909,134 = 909,134/x
  3. Step 3: Cross multiply
    413,926x = 909,134 × 909,134
  4. Step 4: Simplify right side
    413,926x = 826,524,629,956
  5. Step 5: Solve for x
    x = 826,524,629,956/413,926
  6. Step 6: Final answer
    x = 1,996,793.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.