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Finding the Fourth Proportional to 521,485.44, 719,650.20 and 283,021.44

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Solution

The fourth proportional to 521,485.44, 719,650.20 and 283,021.44 is: 390,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,485.44 : 719,650.20 = 283,021.44 : x
  2. Step 2: Convert to fraction form
    521,485.44/719,650.20 = 283,021.44/x
  3. Step 3: Cross multiply
    521,485.44x = 719,650.20 × 283,021.44
  4. Step 4: Simplify right side
    521,485.44x = 203,676,435,900.29
  5. Step 5: Solve for x
    x = 203,676,435,900.29/521,485.44
  6. Step 6: Final answer
    x = 390,569.75

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