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Finding the Fourth Proportional to 548.58, 819.02 and 482.46

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Solution

The fourth proportional to 548.58, 819.02 and 482.46 is: 720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.58 : 819.02 = 482.46 : x
  2. Step 2: Convert to fraction form
    548.58/819.02 = 482.46/x
  3. Step 3: Cross multiply
    548.58x = 819.02 × 482.46
  4. Step 4: Simplify right side
    548.58x = 395,142.52
  5. Step 5: Solve for x
    x = 395,142.52/548.58
  6. Step 6: Final answer
    x = 720.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.