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Finding the Fourth Proportional to 320,997.72, 481,498.98 and 84,339.96

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Solution

The fourth proportional to 320,997.72, 481,498.98 and 84,339.96 is: 126,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,997.72 : 481,498.98 = 84,339.96 : x
  2. Step 2: Convert to fraction form
    320,997.72/481,498.98 = 84,339.96/x
  3. Step 3: Cross multiply
    320,997.72x = 481,498.98 × 84,339.96
  4. Step 4: Simplify right side
    320,997.72x = 40,609,604,713.24
  5. Step 5: Solve for x
    x = 40,609,604,713.24/320,997.72
  6. Step 6: Final answer
    x = 126,510.57

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