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Finding the Fourth Proportional to 660,616.44, 911,620.08 and 374,138.62

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Solution

The fourth proportional to 660,616.44, 911,620.08 and 374,138.62 is: 516,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,616.44 : 911,620.08 = 374,138.62 : x
  2. Step 2: Convert to fraction form
    660,616.44/911,620.08 = 374,138.62/x
  3. Step 3: Cross multiply
    660,616.44x = 911,620.08 × 374,138.62
  4. Step 4: Simplify right side
    660,616.44x = 341,072,278,695.49
  5. Step 5: Solve for x
    x = 341,072,278,695.49/660,616.44
  6. Step 6: Final answer
    x = 516,293.96

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