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Finding the Third Proportional to 307,360 and 629,894

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Solution

The third proportional to 307,360 and 629,894 is: 1,290,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,360 : 629,894 = 629,894 : x
  2. Step 2: Convert to fraction form
    307,360/629,894 = 629,894/x
  3. Step 3: Cross multiply
    307,360x = 629,894 × 629,894
  4. Step 4: Simplify right side
    307,360x = 396,766,451,236
  5. Step 5: Solve for x
    x = 396,766,451,236/307,360
  6. Step 6: Final answer
    x = 1,290,885.12

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.