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Finding the Third Proportional to 310,646 and 679,450

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Solution

The third proportional to 310,646 and 679,450 is: 1,486,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,646 : 679,450 = 679,450 : x
  2. Step 2: Convert to fraction form
    310,646/679,450 = 679,450/x
  3. Step 3: Cross multiply
    310,646x = 679,450 × 679,450
  4. Step 4: Simplify right side
    310,646x = 461,652,302,500
  5. Step 5: Solve for x
    x = 461,652,302,500/310,646
  6. Step 6: Final answer
    x = 1,486,104.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.