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Finding the Fourth Proportional to 1,198.02, 1,797.71 and 548.75

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Solution

The fourth proportional to 1,198.02, 1,797.71 and 548.75 is: 823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.02 : 1,797.71 = 548.75 : x
  2. Step 2: Convert to fraction form
    1,198.02/1,797.71 = 548.75/x
  3. Step 3: Cross multiply
    1,198.02x = 1,797.71 × 548.75
  4. Step 4: Simplify right side
    1,198.02x = 986,493.36
  5. Step 5: Solve for x
    x = 986,493.36/1,198.02
  6. Step 6: Final answer
    x = 823.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.