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Finding the Third Proportional to 620,379 and 1,339,794

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Solution

The third proportional to 620,379 and 1,339,794 is: 2,893,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,379 : 1,339,794 = 1,339,794 : x
  2. Step 2: Convert to fraction form
    620,379/1,339,794 = 1,339,794/x
  3. Step 3: Cross multiply
    620,379x = 1,339,794 × 1,339,794
  4. Step 4: Simplify right side
    620,379x = 1,795,047,962,436
  5. Step 5: Solve for x
    x = 1,795,047,962,436/620,379
  6. Step 6: Final answer
    x = 2,893,469.90

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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.