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Finding the Third Proportional to 396,484.50 and 864,433.50

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Solution

The third proportional to 396,484.50 and 864,433.50 is: 1,884,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,484.50 : 864,433.50 = 864,433.50 : x
  2. Step 2: Convert to fraction form
    396,484.50/864,433.50 = 864,433.50/x
  3. Step 3: Cross multiply
    396,484.50x = 864,433.50 × 864,433.50
  4. Step 4: Simplify right side
    396,484.50x = 747,245,275,922.25
  5. Step 5: Solve for x
    x = 747,245,275,922.25/396,484.50
  6. Step 6: Final answer
    x = 1,884,677.15

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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.