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Finding the Third Proportional to 477.56 and 1,028.11

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Solution

The third proportional to 477.56 and 1,028.11 is: 2,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.56 : 1,028.11 = 1,028.11 : x
  2. Step 2: Convert to fraction form
    477.56/1,028.11 = 1,028.11/x
  3. Step 3: Cross multiply
    477.56x = 1,028.11 × 1,028.11
  4. Step 4: Simplify right side
    477.56x = 1,057,008.89
  5. Step 5: Solve for x
    x = 1,057,008.89/477.56
  6. Step 6: Final answer
    x = 2,213.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.