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Finding the Fourth Proportional to 368,117.60, 552,694.80 and 289,320.80

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Solution

The fourth proportional to 368,117.60, 552,694.80 and 289,320.80 is: 434,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,117.60 : 552,694.80 = 289,320.80 : x
  2. Step 2: Convert to fraction form
    368,117.60/552,694.80 = 289,320.80/x
  3. Step 3: Cross multiply
    368,117.60x = 552,694.80 × 289,320.80
  4. Step 4: Simplify right side
    368,117.60x = 159,906,101,691.84
  5. Step 5: Solve for x
    x = 159,906,101,691.84/368,117.60
  6. Step 6: Final answer
    x = 434,388.63

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