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Finding the Third Proportional to 380,514 and 819,895

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Solution

The third proportional to 380,514 and 819,895 is: 1,766,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,514 : 819,895 = 819,895 : x
  2. Step 2: Convert to fraction form
    380,514/819,895 = 819,895/x
  3. Step 3: Cross multiply
    380,514x = 819,895 × 819,895
  4. Step 4: Simplify right side
    380,514x = 672,227,811,025
  5. Step 5: Solve for x
    x = 672,227,811,025/380,514
  6. Step 6: Final answer
    x = 1,766,630.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.