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Finding the Fourth Proportional to 438,529.56, 605,106.09 and 257,172.99

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Solution

The fourth proportional to 438,529.56, 605,106.09 and 257,172.99 is: 354,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,529.56 : 605,106.09 = 257,172.99 : x
  2. Step 2: Convert to fraction form
    438,529.56/605,106.09 = 257,172.99/x
  3. Step 3: Cross multiply
    438,529.56x = 605,106.09 × 257,172.99
  4. Step 4: Simplify right side
    438,529.56x = 155,616,942,432.51
  5. Step 5: Solve for x
    x = 155,616,942,432.51/438,529.56
  6. Step 6: Final answer
    x = 354,860.78

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