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Finding the Fourth Proportional to 477.72, 715.38 and 332.76

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Solution

The fourth proportional to 477.72, 715.38 and 332.76 is: 498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.72 : 715.38 = 332.76 : x
  2. Step 2: Convert to fraction form
    477.72/715.38 = 332.76/x
  3. Step 3: Cross multiply
    477.72x = 715.38 × 332.76
  4. Step 4: Simplify right side
    477.72x = 238,049.85
  5. Step 5: Solve for x
    x = 238,049.85/477.72
  6. Step 6: Final answer
    x = 498.30

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