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Finding the Fourth Proportional to 978,627.20, 1,467,940.80 and 558,723.20

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Solution

The fourth proportional to 978,627.20, 1,467,940.80 and 558,723.20 is: 838,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,627.20 : 1,467,940.80 = 558,723.20 : x
  2. Step 2: Convert to fraction form
    978,627.20/1,467,940.80 = 558,723.20/x
  3. Step 3: Cross multiply
    978,627.20x = 1,467,940.80 × 558,723.20
  4. Step 4: Simplify right side
    978,627.20x = 820,172,581,186.56
  5. Step 5: Solve for x
    x = 820,172,581,186.56/978,627.20
  6. Step 6: Final answer
    x = 838,084.80

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