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Finding the Fourth Proportional to 498,803.45, 748,315.89 and 143,789.77

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Solution

The fourth proportional to 498,803.45, 748,315.89 and 143,789.77 is: 215,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,803.45 : 748,315.89 = 143,789.77 : x
  2. Step 2: Convert to fraction form
    498,803.45/748,315.89 = 143,789.77/x
  3. Step 3: Cross multiply
    498,803.45x = 748,315.89 × 143,789.77
  4. Step 4: Simplify right side
    498,803.45x = 107,600,167,839.66
  5. Step 5: Solve for x
    x = 107,600,167,839.66/498,803.45
  6. Step 6: Final answer
    x = 215,716.57

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