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Finding the Fourth Proportional to 533.57, 800.60 and 289.73

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Solution

The fourth proportional to 533.57, 800.60 and 289.73 is: 434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.57 : 800.60 = 289.73 : x
  2. Step 2: Convert to fraction form
    533.57/800.60 = 289.73/x
  3. Step 3: Cross multiply
    533.57x = 800.60 × 289.73
  4. Step 4: Simplify right side
    533.57x = 231,956.39
  5. Step 5: Solve for x
    x = 231,956.39/533.57
  6. Step 6: Final answer
    x = 434.73

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