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Finding the Third Proportional to 299,290.50 and 646,059

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Solution

The third proportional to 299,290.50 and 646,059 is: 1,394,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,290.50 : 646,059 = 646,059 : x
  2. Step 2: Convert to fraction form
    299,290.50/646,059 = 646,059/x
  3. Step 3: Cross multiply
    299,290.50x = 646,059 × 646,059
  4. Step 4: Simplify right side
    299,290.50x = 417,392,231,481
  5. Step 5: Solve for x
    x = 417,392,231,481/299,290.50
  6. Step 6: Final answer
    x = 1,394,605.68

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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.