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Finding the Fourth Proportional to 533.75, 796.44 and 479.21

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Solution

The fourth proportional to 533.75, 796.44 and 479.21 is: 715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.75 : 796.44 = 479.21 : x
  2. Step 2: Convert to fraction form
    533.75/796.44 = 479.21/x
  3. Step 3: Cross multiply
    533.75x = 796.44 × 479.21
  4. Step 4: Simplify right side
    533.75x = 381,659.62
  5. Step 5: Solve for x
    x = 381,659.62/533.75
  6. Step 6: Final answer
    x = 715.05

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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.