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Finding the Fourth Proportional to 1,188.04, 1,782.06 and 322.42

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Solution

The fourth proportional to 1,188.04, 1,782.06 and 322.42 is: 483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.04 : 1,782.06 = 322.42 : x
  2. Step 2: Convert to fraction form
    1,188.04/1,782.06 = 322.42/x
  3. Step 3: Cross multiply
    1,188.04x = 1,782.06 × 322.42
  4. Step 4: Simplify right side
    1,188.04x = 574,571.79
  5. Step 5: Solve for x
    x = 574,571.79/1,188.04
  6. Step 6: Final answer
    x = 483.63

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