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Finding the Fourth Proportional to 325,621.20, 488,431.80 and 293,480.40

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Solution

The fourth proportional to 325,621.20, 488,431.80 and 293,480.40 is: 440,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,621.20 : 488,431.80 = 293,480.40 : x
  2. Step 2: Convert to fraction form
    325,621.20/488,431.80 = 293,480.40/x
  3. Step 3: Cross multiply
    325,621.20x = 488,431.80 × 293,480.40
  4. Step 4: Simplify right side
    325,621.20x = 143,345,160,036.72
  5. Step 5: Solve for x
    x = 143,345,160,036.72/325,621.20
  6. Step 6: Final answer
    x = 440,220.60

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