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Finding the Fourth Proportional to 686,999.27, 948,074.19 and 381,065.69

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Solution

The fourth proportional to 686,999.27, 948,074.19 and 381,065.69 is: 525,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,999.27 : 948,074.19 = 381,065.69 : x
  2. Step 2: Convert to fraction form
    686,999.27/948,074.19 = 381,065.69/x
  3. Step 3: Cross multiply
    686,999.27x = 948,074.19 × 381,065.69
  4. Step 4: Simplify right side
    686,999.27x = 361,278,545,383.54
  5. Step 5: Solve for x
    x = 361,278,545,383.54/686,999.27
  6. Step 6: Final answer
    x = 525,879.08

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