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Finding the Fourth Proportional to 533.38, 798.52 and 477.80

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Solution

The fourth proportional to 533.38, 798.52 and 477.80 is: 715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.38 : 798.52 = 477.80 : x
  2. Step 2: Convert to fraction form
    533.38/798.52 = 477.80/x
  3. Step 3: Cross multiply
    533.38x = 798.52 × 477.80
  4. Step 4: Simplify right side
    533.38x = 381,532.86
  5. Step 5: Solve for x
    x = 381,532.86/533.38
  6. Step 6: Final answer
    x = 715.31

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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.