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Finding the Fourth Proportional to 288,684.80, 433,027.44 and 78,322.76

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Solution

The fourth proportional to 288,684.80, 433,027.44 and 78,322.76 is: 117,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,684.80 : 433,027.44 = 78,322.76 : x
  2. Step 2: Convert to fraction form
    288,684.80/433,027.44 = 78,322.76/x
  3. Step 3: Cross multiply
    288,684.80x = 433,027.44 × 78,322.76
  4. Step 4: Simplify right side
    288,684.80x = 33,915,904,256.53
  5. Step 5: Solve for x
    x = 33,915,904,256.53/288,684.80
  6. Step 6: Final answer
    x = 117,484.21

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