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Finding the Third Proportional to 406.75 and 889.25

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Solution

The third proportional to 406.75 and 889.25 is: 1,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.75 : 889.25 = 889.25 : x
  2. Step 2: Convert to fraction form
    406.75/889.25 = 889.25/x
  3. Step 3: Cross multiply
    406.75x = 889.25 × 889.25
  4. Step 4: Simplify right side
    406.75x = 790,765.56
  5. Step 5: Solve for x
    x = 790,765.56/406.75
  6. Step 6: Final answer
    x = 1,944.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.