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Finding the Third Proportional to 299,360 and 646,204

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Solution

The third proportional to 299,360 and 646,204 is: 1,394,907.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,360 : 646,204 = 646,204 : x
  2. Step 2: Convert to fraction form
    299,360/646,204 = 646,204/x
  3. Step 3: Cross multiply
    299,360x = 646,204 × 646,204
  4. Step 4: Simplify right side
    299,360x = 417,579,609,616
  5. Step 5: Solve for x
    x = 417,579,609,616/299,360
  6. Step 6: Final answer
    x = 1,394,907.84

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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.