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Finding the Fourth Proportional to 398,652.80, 550,187.55 and 226,596.65

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Solution

The fourth proportional to 398,652.80, 550,187.55 and 226,596.65 is: 312,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,652.80 : 550,187.55 = 226,596.65 : x
  2. Step 2: Convert to fraction form
    398,652.80/550,187.55 = 226,596.65/x
  3. Step 3: Cross multiply
    398,652.80x = 550,187.55 × 226,596.65
  4. Step 4: Simplify right side
    398,652.80x = 124,670,652,950.77
  5. Step 5: Solve for x
    x = 124,670,652,950.77/398,652.80
  6. Step 6: Final answer
    x = 312,729.91

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