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Finding the Third Proportional to 381,771 and 829,158

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Solution

The third proportional to 381,771 and 829,158 is: 1,800,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,771 : 829,158 = 829,158 : x
  2. Step 2: Convert to fraction form
    381,771/829,158 = 829,158/x
  3. Step 3: Cross multiply
    381,771x = 829,158 × 829,158
  4. Step 4: Simplify right side
    381,771x = 687,502,988,964
  5. Step 5: Solve for x
    x = 687,502,988,964/381,771
  6. Step 6: Final answer
    x = 1,800,825.60

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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.