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Finding the Third Proportional to 381,012.75 and 839,778.75

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Solution

The third proportional to 381,012.75 and 839,778.75 is: 1,850,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,012.75 : 839,778.75 = 839,778.75 : x
  2. Step 2: Convert to fraction form
    381,012.75/839,778.75 = 839,778.75/x
  3. Step 3: Cross multiply
    381,012.75x = 839,778.75 × 839,778.75
  4. Step 4: Simplify right side
    381,012.75x = 705,228,348,951.56
  5. Step 5: Solve for x
    x = 705,228,348,951.56/381,012.75
  6. Step 6: Final answer
    x = 1,850,931.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.