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Finding the Third Proportional to 397,326 and 869,734

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Solution

The third proportional to 397,326 and 869,734 is: 1,903,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,326 : 869,734 = 869,734 : x
  2. Step 2: Convert to fraction form
    397,326/869,734 = 869,734/x
  3. Step 3: Cross multiply
    397,326x = 869,734 × 869,734
  4. Step 4: Simplify right side
    397,326x = 756,437,230,756
  5. Step 5: Solve for x
    x = 756,437,230,756/397,326
  6. Step 6: Final answer
    x = 1,903,820.11

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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.