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Finding the Fourth Proportional to 389,978.13, 585,000.31 and 109,495.38

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Solution

The fourth proportional to 389,978.13, 585,000.31 and 109,495.38 is: 164,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,978.13 : 585,000.31 = 109,495.38 : x
  2. Step 2: Convert to fraction form
    389,978.13/585,000.31 = 109,495.38/x
  3. Step 3: Cross multiply
    389,978.13x = 585,000.31 × 109,495.38
  4. Step 4: Simplify right side
    389,978.13x = 64,054,831,243.57
  5. Step 5: Solve for x
    x = 64,054,831,243.57/389,978.13
  6. Step 6: Final answer
    x = 164,252.37

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