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Finding the Third Proportional to 644,558 and 1,391,608

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Solution

The third proportional to 644,558 and 1,391,608 is: 3,004,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,558 : 1,391,608 = 1,391,608 : x
  2. Step 2: Convert to fraction form
    644,558/1,391,608 = 1,391,608/x
  3. Step 3: Cross multiply
    644,558x = 1,391,608 × 1,391,608
  4. Step 4: Simplify right side
    644,558x = 1,936,572,825,664
  5. Step 5: Solve for x
    x = 1,936,572,825,664/644,558
  6. Step 6: Final answer
    x = 3,004,497.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.