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Finding the Third Proportional to 324,243 and 517,983

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Solution

The third proportional to 324,243 and 517,983 is: 827,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,243 : 517,983 = 517,983 : x
  2. Step 2: Convert to fraction form
    324,243/517,983 = 517,983/x
  3. Step 3: Cross multiply
    324,243x = 517,983 × 517,983
  4. Step 4: Simplify right side
    324,243x = 268,306,388,289
  5. Step 5: Solve for x
    x = 268,306,388,289/324,243
  6. Step 6: Final answer
    x = 827,485.52

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.