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Finding the Third Proportional to 400,249 and 866,930

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Solution

The third proportional to 400,249 and 866,930 is: 1,877,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,249 : 866,930 = 866,930 : x
  2. Step 2: Convert to fraction form
    400,249/866,930 = 866,930/x
  3. Step 3: Cross multiply
    400,249x = 866,930 × 866,930
  4. Step 4: Simplify right side
    400,249x = 751,567,624,900
  5. Step 5: Solve for x
    x = 751,567,624,900/400,249
  6. Step 6: Final answer
    x = 1,877,750.16

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.