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Finding the Fourth Proportional to 655.80, 982.81 and 362.87

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Solution

The fourth proportional to 655.80, 982.81 and 362.87 is: 543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.80 : 982.81 = 362.87 : x
  2. Step 2: Convert to fraction form
    655.80/982.81 = 362.87/x
  3. Step 3: Cross multiply
    655.80x = 982.81 × 362.87
  4. Step 4: Simplify right side
    655.80x = 356,632.26
  5. Step 5: Solve for x
    x = 356,632.26/655.80
  6. Step 6: Final answer
    x = 543.81

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