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Finding the Fourth Proportional to 325,643.60, 488,465.40 and 89,022.80

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Solution

The fourth proportional to 325,643.60, 488,465.40 and 89,022.80 is: 133,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,643.60 : 488,465.40 = 89,022.80 : x
  2. Step 2: Convert to fraction form
    325,643.60/488,465.40 = 89,022.80/x
  3. Step 3: Cross multiply
    325,643.60x = 488,465.40 × 89,022.80
  4. Step 4: Simplify right side
    325,643.60x = 43,484,557,611.12
  5. Step 5: Solve for x
    x = 43,484,557,611.12/325,643.60
  6. Step 6: Final answer
    x = 133,534.20

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