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Finding the Third Proportional to 328,394 and 707,446

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Solution

The third proportional to 328,394 and 707,446 is: 1,524,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,394 : 707,446 = 707,446 : x
  2. Step 2: Convert to fraction form
    328,394/707,446 = 707,446/x
  3. Step 3: Cross multiply
    328,394x = 707,446 × 707,446
  4. Step 4: Simplify right side
    328,394x = 500,479,842,916
  5. Step 5: Solve for x
    x = 500,479,842,916/328,394
  6. Step 6: Final answer
    x = 1,524,022.49

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.