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Finding the Third Proportional to 644,544 and 1,391,580

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Solution

The third proportional to 644,544 and 1,391,580 is: 3,004,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,544 : 1,391,580 = 1,391,580 : x
  2. Step 2: Convert to fraction form
    644,544/1,391,580 = 1,391,580/x
  3. Step 3: Cross multiply
    644,544x = 1,391,580 × 1,391,580
  4. Step 4: Simplify right side
    644,544x = 1,936,494,896,400
  5. Step 5: Solve for x
    x = 1,936,494,896,400/644,544
  6. Step 6: Final answer
    x = 3,004,441.74

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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.