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Finding the Fourth Proportional to 655.71, 904.84 and 375.89

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Solution

The fourth proportional to 655.71, 904.84 and 375.89 is: 518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.71 : 904.84 = 375.89 : x
  2. Step 2: Convert to fraction form
    655.71/904.84 = 375.89/x
  3. Step 3: Cross multiply
    655.71x = 904.84 × 375.89
  4. Step 4: Simplify right side
    655.71x = 340,115.78
  5. Step 5: Solve for x
    x = 340,115.78/655.71
  6. Step 6: Final answer
    x = 518.70

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