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Finding the Fourth Proportional to 660.36, 994.26 and 544.56

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Solution

The fourth proportional to 660.36, 994.26 and 544.56 is: 819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.36 : 994.26 = 544.56 : x
  2. Step 2: Convert to fraction form
    660.36/994.26 = 544.56/x
  3. Step 3: Cross multiply
    660.36x = 994.26 × 544.56
  4. Step 4: Simplify right side
    660.36x = 541,434.23
  5. Step 5: Solve for x
    x = 541,434.23/660.36
  6. Step 6: Final answer
    x = 819.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.