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Finding the Fourth Proportional to 850.76, 1,275.39 and 363.72

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Solution

The fourth proportional to 850.76, 1,275.39 and 363.72 is: 545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.76 : 1,275.39 = 363.72 : x
  2. Step 2: Convert to fraction form
    850.76/1,275.39 = 363.72/x
  3. Step 3: Cross multiply
    850.76x = 1,275.39 × 363.72
  4. Step 4: Simplify right side
    850.76x = 463,884.85
  5. Step 5: Solve for x
    x = 463,884.85/850.76
  6. Step 6: Final answer
    x = 545.26

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