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Finding the Fourth Proportional to 691,704.89, 954,390.21 and 419,766.63

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Solution

The fourth proportional to 691,704.89, 954,390.21 and 419,766.63 is: 579,179.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,704.89 : 954,390.21 = 419,766.63 : x
  2. Step 2: Convert to fraction form
    691,704.89/954,390.21 = 419,766.63/x
  3. Step 3: Cross multiply
    691,704.89x = 954,390.21 × 419,766.63
  4. Step 4: Simplify right side
    691,704.89x = 400,621,162,156.69
  5. Step 5: Solve for x
    x = 400,621,162,156.69/691,704.89
  6. Step 6: Final answer
    x = 579,179.31

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