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Finding the Fourth Proportional to 510,850.87, 705,029.57 and 281,431.68

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Solution

The fourth proportional to 510,850.87, 705,029.57 and 281,431.68 is: 388,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,850.87 : 705,029.57 = 281,431.68 : x
  2. Step 2: Convert to fraction form
    510,850.87/705,029.57 = 281,431.68/x
  3. Step 3: Cross multiply
    510,850.87x = 705,029.57 × 281,431.68
  4. Step 4: Simplify right side
    510,850.87x = 198,417,656,334.78
  5. Step 5: Solve for x
    x = 198,417,656,334.78/510,850.87
  6. Step 6: Final answer
    x = 388,406.22

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