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Finding the Fourth Proportional to 386.83, 580.92 and 369.46

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Solution

The fourth proportional to 386.83, 580.92 and 369.46 is: 554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.83 : 580.92 = 369.46 : x
  2. Step 2: Convert to fraction form
    386.83/580.92 = 369.46/x
  3. Step 3: Cross multiply
    386.83x = 580.92 × 369.46
  4. Step 4: Simplify right side
    386.83x = 214,626.70
  5. Step 5: Solve for x
    x = 214,626.70/386.83
  6. Step 6: Final answer
    x = 554.83

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