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Finding the Third Proportional to 339,410 and 670,252

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Solution

The third proportional to 339,410 and 670,252 is: 1,323,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,410 : 670,252 = 670,252 : x
  2. Step 2: Convert to fraction form
    339,410/670,252 = 670,252/x
  3. Step 3: Cross multiply
    339,410x = 670,252 × 670,252
  4. Step 4: Simplify right side
    339,410x = 449,237,743,504
  5. Step 5: Solve for x
    x = 449,237,743,504/339,410
  6. Step 6: Final answer
    x = 1,323,584.29

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.