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Finding the Fourth Proportional to 515,383.41, 711,227.75 and 289,033.77

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Solution

The fourth proportional to 515,383.41, 711,227.75 and 289,033.77 is: 398,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,383.41 : 711,227.75 = 289,033.77 : x
  2. Step 2: Convert to fraction form
    515,383.41/711,227.75 = 289,033.77/x
  3. Step 3: Cross multiply
    515,383.41x = 711,227.75 × 289,033.77
  4. Step 4: Simplify right side
    515,383.41x = 205,568,836,465.95
  5. Step 5: Solve for x
    x = 205,568,836,465.95/515,383.41
  6. Step 6: Final answer
    x = 398,865.84

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