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Finding the Fourth Proportional to 558.90, 838.44 and 376.74

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Solution

The fourth proportional to 558.90, 838.44 and 376.74 is: 565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.90 : 838.44 = 376.74 : x
  2. Step 2: Convert to fraction form
    558.90/838.44 = 376.74/x
  3. Step 3: Cross multiply
    558.90x = 838.44 × 376.74
  4. Step 4: Simplify right side
    558.90x = 315,873.89
  5. Step 5: Solve for x
    x = 315,873.89/558.90
  6. Step 6: Final answer
    x = 565.17

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