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Finding the Fourth Proportional to 533.75, 799.92 and 479.07

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Solution

The fourth proportional to 533.75, 799.92 and 479.07 is: 717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.75 : 799.92 = 479.07 : x
  2. Step 2: Convert to fraction form
    533.75/799.92 = 479.07/x
  3. Step 3: Cross multiply
    533.75x = 799.92 × 479.07
  4. Step 4: Simplify right side
    533.75x = 383,217.67
  5. Step 5: Solve for x
    x = 383,217.67/533.75
  6. Step 6: Final answer
    x = 717.98

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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.