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Finding the Fourth Proportional to 470,704.80, 706,057.20 and 328,987.20

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Solution

The fourth proportional to 470,704.80, 706,057.20 and 328,987.20 is: 493,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,704.80 : 706,057.20 = 328,987.20 : x
  2. Step 2: Convert to fraction form
    470,704.80/706,057.20 = 328,987.20/x
  3. Step 3: Cross multiply
    470,704.80x = 706,057.20 × 328,987.20
  4. Step 4: Simplify right side
    470,704.80x = 232,283,781,267.84
  5. Step 5: Solve for x
    x = 232,283,781,267.84/470,704.80
  6. Step 6: Final answer
    x = 493,480.80

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