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Finding the Third Proportional to 901.78 and 1,277.25

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Solution

The third proportional to 901.78 and 1,277.25 is: 1,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.78 : 1,277.25 = 1,277.25 : x
  2. Step 2: Convert to fraction form
    901.78/1,277.25 = 1,277.25/x
  3. Step 3: Cross multiply
    901.78x = 1,277.25 × 1,277.25
  4. Step 4: Simplify right side
    901.78x = 1,631,367.56
  5. Step 5: Solve for x
    x = 1,631,367.56/901.78
  6. Step 6: Final answer
    x = 1,809.05

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.