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Finding the Third Proportional to 397,011 and 864,000

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Solution

The third proportional to 397,011 and 864,000 is: 1,880,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,011 : 864,000 = 864,000 : x
  2. Step 2: Convert to fraction form
    397,011/864,000 = 864,000/x
  3. Step 3: Cross multiply
    397,011x = 864,000 × 864,000
  4. Step 4: Simplify right side
    397,011x = 746,496,000,000
  5. Step 5: Solve for x
    x = 746,496,000,000/397,011
  6. Step 6: Final answer
    x = 1,880,290.47

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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.