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Finding the Fourth Proportional to 538.75, 808.53 and 394.84

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Solution

The fourth proportional to 538.75, 808.53 and 394.84 is: 592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.75 : 808.53 = 394.84 : x
  2. Step 2: Convert to fraction form
    538.75/808.53 = 394.84/x
  3. Step 3: Cross multiply
    538.75x = 808.53 × 394.84
  4. Step 4: Simplify right side
    538.75x = 319,233.97
  5. Step 5: Solve for x
    x = 319,233.97/538.75
  6. Step 6: Final answer
    x = 592.55

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