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Finding the Fourth Proportional to 403,834.80, 605,752.20 and 262,117.20

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Solution

The fourth proportional to 403,834.80, 605,752.20 and 262,117.20 is: 393,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,834.80 : 605,752.20 = 262,117.20 : x
  2. Step 2: Convert to fraction form
    403,834.80/605,752.20 = 262,117.20/x
  3. Step 3: Cross multiply
    403,834.80x = 605,752.20 × 262,117.20
  4. Step 4: Simplify right side
    403,834.80x = 158,778,070,557.84
  5. Step 5: Solve for x
    x = 158,778,070,557.84/403,834.80
  6. Step 6: Final answer
    x = 393,175.80

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