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Finding the Third Proportional to 396,091 and 824,822

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Solution

The third proportional to 396,091 and 824,822 is: 1,717,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,091 : 824,822 = 824,822 : x
  2. Step 2: Convert to fraction form
    396,091/824,822 = 824,822/x
  3. Step 3: Cross multiply
    396,091x = 824,822 × 824,822
  4. Step 4: Simplify right side
    396,091x = 680,331,331,684
  5. Step 5: Solve for x
    x = 680,331,331,684/396,091
  6. Step 6: Final answer
    x = 1,717,613.71

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.