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Finding the Fourth Proportional to 943.03, 1,415.09 and 395.16

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Solution

The fourth proportional to 943.03, 1,415.09 and 395.16 is: 592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.03 : 1,415.09 = 395.16 : x
  2. Step 2: Convert to fraction form
    943.03/1,415.09 = 395.16/x
  3. Step 3: Cross multiply
    943.03x = 1,415.09 × 395.16
  4. Step 4: Simplify right side
    943.03x = 559,186.96
  5. Step 5: Solve for x
    x = 559,186.96/943.03
  6. Step 6: Final answer
    x = 592.97

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