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Finding the Third Proportional to 854.75 and 1,177.75

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Solution

The third proportional to 854.75 and 1,177.75 is: 1,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.75 : 1,177.75 = 1,177.75 : x
  2. Step 2: Convert to fraction form
    854.75/1,177.75 = 1,177.75/x
  3. Step 3: Cross multiply
    854.75x = 1,177.75 × 1,177.75
  4. Step 4: Simplify right side
    854.75x = 1,387,095.06
  5. Step 5: Solve for x
    x = 1,387,095.06/854.75
  6. Step 6: Final answer
    x = 1,622.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.