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Finding the Fourth Proportional to 1,333.03, 1,999.69 and 512

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Solution

The fourth proportional to 1,333.03, 1,999.69 and 512 is: 768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.03 : 1,999.69 = 512 : x
  2. Step 2: Convert to fraction form
    1,333.03/1,999.69 = 512/x
  3. Step 3: Cross multiply
    1,333.03x = 1,999.69 × 512
  4. Step 4: Simplify right side
    1,333.03x = 1,023,841.28
  5. Step 5: Solve for x
    x = 1,023,841.28/1,333.03
  6. Step 6: Final answer
    x = 768.06

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