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Finding the Third Proportional to 297,726.75 and 644,663.25

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Solution

The third proportional to 297,726.75 and 644,663.25 is: 1,395,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,726.75 : 644,663.25 = 644,663.25 : x
  2. Step 2: Convert to fraction form
    297,726.75/644,663.25 = 644,663.25/x
  3. Step 3: Cross multiply
    297,726.75x = 644,663.25 × 644,663.25
  4. Step 4: Simplify right side
    297,726.75x = 415,590,705,900.56
  5. Step 5: Solve for x
    x = 415,590,705,900.56/297,726.75
  6. Step 6: Final answer
    x = 1,395,879.63

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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.