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Finding the Third Proportional to 397,170 and 864,228

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Solution

The third proportional to 397,170 and 864,228 is: 1,880,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,170 : 864,228 = 864,228 : x
  2. Step 2: Convert to fraction form
    397,170/864,228 = 864,228/x
  3. Step 3: Cross multiply
    397,170x = 864,228 × 864,228
  4. Step 4: Simplify right side
    397,170x = 746,890,035,984
  5. Step 5: Solve for x
    x = 746,890,035,984/397,170
  6. Step 6: Final answer
    x = 1,880,529.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.