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Finding the Third Proportional to 621,247 and 1,330,999

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Solution

The third proportional to 621,247 and 1,330,999 is: 2,851,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,247 : 1,330,999 = 1,330,999 : x
  2. Step 2: Convert to fraction form
    621,247/1,330,999 = 1,330,999/x
  3. Step 3: Cross multiply
    621,247x = 1,330,999 × 1,330,999
  4. Step 4: Simplify right side
    621,247x = 1,771,558,338,001
  5. Step 5: Solve for x
    x = 1,771,558,338,001/621,247
  6. Step 6: Final answer
    x = 2,851,616.73

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.