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Finding the Fourth Proportional to 591,816.20, 887,724.30 and 402,859.40

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Solution

The fourth proportional to 591,816.20, 887,724.30 and 402,859.40 is: 604,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,816.20 : 887,724.30 = 402,859.40 : x
  2. Step 2: Convert to fraction form
    591,816.20/887,724.30 = 402,859.40/x
  3. Step 3: Cross multiply
    591,816.20x = 887,724.30 × 402,859.40
  4. Step 4: Simplify right side
    591,816.20x = 357,628,078,863.42
  5. Step 5: Solve for x
    x = 357,628,078,863.42/591,816.20
  6. Step 6: Final answer
    x = 604,289.10

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