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Finding the Fourth Proportional to 533.67, 798.61 and 396.38

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Solution

The fourth proportional to 533.67, 798.61 and 396.38 is: 593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.67 : 798.61 = 396.38 : x
  2. Step 2: Convert to fraction form
    533.67/798.61 = 396.38/x
  3. Step 3: Cross multiply
    533.67x = 798.61 × 396.38
  4. Step 4: Simplify right side
    533.67x = 316,553.03
  5. Step 5: Solve for x
    x = 316,553.03/533.67
  6. Step 6: Final answer
    x = 593.16

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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.