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Finding the Third Proportional to 412.59 and 889.73

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Solution

The third proportional to 412.59 and 889.73 is: 1,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.59 : 889.73 = 889.73 : x
  2. Step 2: Convert to fraction form
    412.59/889.73 = 889.73/x
  3. Step 3: Cross multiply
    412.59x = 889.73 × 889.73
  4. Step 4: Simplify right side
    412.59x = 791,627.26
  5. Step 5: Solve for x
    x = 791,627.26/412.59
  6. Step 6: Final answer
    x = 1,918.66

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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.