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Finding the Fourth Proportional to 978,199.20, 1,467,298.80 and 853,783.20

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Solution

The fourth proportional to 978,199.20, 1,467,298.80 and 853,783.20 is: 1,280,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,199.20 : 1,467,298.80 = 853,783.20 : x
  2. Step 2: Convert to fraction form
    978,199.20/1,467,298.80 = 853,783.20/x
  3. Step 3: Cross multiply
    978,199.20x = 1,467,298.80 × 853,783.20
  4. Step 4: Simplify right side
    978,199.20x = 1,252,755,064,820.16
  5. Step 5: Solve for x
    x = 1,252,755,064,820.16/978,199.20
  6. Step 6: Final answer
    x = 1,280,674.80

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