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Finding the Fourth Proportional to 568.63, 784.71 and 319.95

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Solution

The fourth proportional to 568.63, 784.71 and 319.95 is: 441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.63 : 784.71 = 319.95 : x
  2. Step 2: Convert to fraction form
    568.63/784.71 = 319.95/x
  3. Step 3: Cross multiply
    568.63x = 784.71 × 319.95
  4. Step 4: Simplify right side
    568.63x = 251,067.72
  5. Step 5: Solve for x
    x = 251,067.72/568.63
  6. Step 6: Final answer
    x = 441.53

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