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Finding the Fourth Proportional to 978,625.20, 1,467,937.80 and 558,721.20

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Solution

The fourth proportional to 978,625.20, 1,467,937.80 and 558,721.20 is: 838,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,625.20 : 1,467,937.80 = 558,721.20 : x
  2. Step 2: Convert to fraction form
    978,625.20/1,467,937.80 = 558,721.20/x
  3. Step 3: Cross multiply
    978,625.20x = 1,467,937.80 × 558,721.20
  4. Step 4: Simplify right side
    978,625.20x = 820,167,969,141.36
  5. Step 5: Solve for x
    x = 820,167,969,141.36/978,625.20
  6. Step 6: Final answer
    x = 838,081.80

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