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Finding the Fourth Proportional to 399,149.88, 550,826.85 and 272,047.51

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Solution

The fourth proportional to 399,149.88, 550,826.85 and 272,047.51 is: 375,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,149.88 : 550,826.85 = 272,047.51 : x
  2. Step 2: Convert to fraction form
    399,149.88/550,826.85 = 272,047.51/x
  3. Step 3: Cross multiply
    399,149.88x = 550,826.85 × 272,047.51
  4. Step 4: Simplify right side
    399,149.88x = 149,851,072,983.64
  5. Step 5: Solve for x
    x = 149,851,072,983.64/399,149.88
  6. Step 6: Final answer
    x = 375,425.57

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