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Finding the Fourth Proportional to 978,503.20, 1,467,754.80 and 679,904.80

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Solution

The fourth proportional to 978,503.20, 1,467,754.80 and 679,904.80 is: 1,019,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,503.20 : 1,467,754.80 = 679,904.80 : x
  2. Step 2: Convert to fraction form
    978,503.20/1,467,754.80 = 679,904.80/x
  3. Step 3: Cross multiply
    978,503.20x = 1,467,754.80 × 679,904.80
  4. Step 4: Simplify right side
    978,503.20x = 997,933,533,743.04
  5. Step 5: Solve for x
    x = 997,933,533,743.04/978,503.20
  6. Step 6: Final answer
    x = 1,019,857.20

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