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Finding the Fourth Proportional to 504.11, 756.02 and 318.89

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Solution

The fourth proportional to 504.11, 756.02 and 318.89 is: 478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.11 : 756.02 = 318.89 : x
  2. Step 2: Convert to fraction form
    504.11/756.02 = 318.89/x
  3. Step 3: Cross multiply
    504.11x = 756.02 × 318.89
  4. Step 4: Simplify right side
    504.11x = 241,081.84
  5. Step 5: Solve for x
    x = 241,081.84/504.11
  6. Step 6: Final answer
    x = 478.24

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