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Finding the Fourth Proportional to 415,987.20, 573,908.40 and 272,826.72

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Solution

The fourth proportional to 415,987.20, 573,908.40 and 272,826.72 is: 376,399.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,987.20 : 573,908.40 = 272,826.72 : x
  2. Step 2: Convert to fraction form
    415,987.20/573,908.40 = 272,826.72/x
  3. Step 3: Cross multiply
    415,987.20x = 573,908.40 × 272,826.72
  4. Step 4: Simplify right side
    415,987.20x = 156,577,546,352.45
  5. Step 5: Solve for x
    x = 156,577,546,352.45/415,987.20
  6. Step 6: Final answer
    x = 376,399.91

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