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Finding the Third Proportional to 396,069 and 841,222

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Solution

The third proportional to 396,069 and 841,222 is: 1,786,694.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,069 : 841,222 = 841,222 : x
  2. Step 2: Convert to fraction form
    396,069/841,222 = 841,222/x
  3. Step 3: Cross multiply
    396,069x = 841,222 × 841,222
  4. Step 4: Simplify right side
    396,069x = 707,654,453,284
  5. Step 5: Solve for x
    x = 707,654,453,284/396,069
  6. Step 6: Final answer
    x = 1,786,694.88

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.