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Finding the Fourth Proportional to 413,722.20, 620,496.18 and 189,018.84

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Solution

The fourth proportional to 413,722.20, 620,496.18 and 189,018.84 is: 283,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,722.20 : 620,496.18 = 189,018.84 : x
  2. Step 2: Convert to fraction form
    413,722.20/620,496.18 = 189,018.84/x
  3. Step 3: Cross multiply
    413,722.20x = 620,496.18 × 189,018.84
  4. Step 4: Simplify right side
    413,722.20x = 117,285,468,168.03
  5. Step 5: Solve for x
    x = 117,285,468,168.03/413,722.20
  6. Step 6: Final answer
    x = 283,488.46

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