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Finding the Fourth Proportional to 569.79, 854.55 and 326.19

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Solution

The fourth proportional to 569.79, 854.55 and 326.19 is: 489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.79 : 854.55 = 326.19 : x
  2. Step 2: Convert to fraction form
    569.79/854.55 = 326.19/x
  3. Step 3: Cross multiply
    569.79x = 854.55 × 326.19
  4. Step 4: Simplify right side
    569.79x = 278,745.66
  5. Step 5: Solve for x
    x = 278,745.66/569.79
  6. Step 6: Final answer
    x = 489.21

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