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Finding the Third Proportional to 394,410 and 863,450

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Solution

The third proportional to 394,410 and 863,450 is: 1,890,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,410 : 863,450 = 863,450 : x
  2. Step 2: Convert to fraction form
    394,410/863,450 = 863,450/x
  3. Step 3: Cross multiply
    394,410x = 863,450 × 863,450
  4. Step 4: Simplify right side
    394,410x = 745,545,902,500
  5. Step 5: Solve for x
    x = 745,545,902,500/394,410
  6. Step 6: Final answer
    x = 1,890,281.44

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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.