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Finding the Third Proportional to 299,182 and 645,930

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Solution

The third proportional to 299,182 and 645,930 is: 1,394,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,182 : 645,930 = 645,930 : x
  2. Step 2: Convert to fraction form
    299,182/645,930 = 645,930/x
  3. Step 3: Cross multiply
    299,182x = 645,930 × 645,930
  4. Step 4: Simplify right side
    299,182x = 417,225,564,900
  5. Step 5: Solve for x
    x = 417,225,564,900/299,182
  6. Step 6: Final answer
    x = 1,394,554.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.