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Finding the Fourth Proportional to 408,211.40, 612,106.15 and 183,379.60

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Solution

The fourth proportional to 408,211.40, 612,106.15 and 183,379.60 is: 274,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,211.40 : 612,106.15 = 183,379.60 : x
  2. Step 2: Convert to fraction form
    408,211.40/612,106.15 = 183,379.60/x
  3. Step 3: Cross multiply
    408,211.40x = 612,106.15 × 183,379.60
  4. Step 4: Simplify right side
    408,211.40x = 112,247,780,944.54
  5. Step 5: Solve for x
    x = 112,247,780,944.54/408,211.40
  6. Step 6: Final answer
    x = 274,974.64

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