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Finding the Fourth Proportional to 533.27, 794.69 and 515.86

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Solution

The fourth proportional to 533.27, 794.69 and 515.86 is: 768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.27 : 794.69 = 515.86 : x
  2. Step 2: Convert to fraction form
    533.27/794.69 = 515.86/x
  3. Step 3: Cross multiply
    533.27x = 794.69 × 515.86
  4. Step 4: Simplify right side
    533.27x = 409,948.78
  5. Step 5: Solve for x
    x = 409,948.78/533.27
  6. Step 6: Final answer
    x = 768.75

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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.