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Finding the Fourth Proportional to 335,740.80, 503,611.20 and 259,633.20

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Solution

The fourth proportional to 335,740.80, 503,611.20 and 259,633.20 is: 389,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,740.80 : 503,611.20 = 259,633.20 : x
  2. Step 2: Convert to fraction form
    335,740.80/503,611.20 = 259,633.20/x
  3. Step 3: Cross multiply
    335,740.80x = 503,611.20 × 259,633.20
  4. Step 4: Simplify right side
    335,740.80x = 130,754,187,411.84
  5. Step 5: Solve for x
    x = 130,754,187,411.84/335,740.80
  6. Step 6: Final answer
    x = 389,449.80

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