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Finding the Fourth Proportional to 533.70, 798.58 and 324.72

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Solution

The fourth proportional to 533.70, 798.58 and 324.72 is: 485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.70 : 798.58 = 324.72 : x
  2. Step 2: Convert to fraction form
    533.70/798.58 = 324.72/x
  3. Step 3: Cross multiply
    533.70x = 798.58 × 324.72
  4. Step 4: Simplify right side
    533.70x = 259,314.90
  5. Step 5: Solve for x
    x = 259,314.90/533.70
  6. Step 6: Final answer
    x = 485.88

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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.