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Finding the Fourth Proportional to 531,660, 733,680.72 and 289,944.48

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Solution

The fourth proportional to 531,660, 733,680.72 and 289,944.48 is: 400,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,660 : 733,680.72 = 289,944.48 : x
  2. Step 2: Convert to fraction form
    531,660/733,680.72 = 289,944.48/x
  3. Step 3: Cross multiply
    531,660x = 733,680.72 × 289,944.48
  4. Step 4: Simplify right side
    531,660x = 212,726,674,846.43
  5. Step 5: Solve for x
    x = 212,726,674,846.43/531,660
  6. Step 6: Final answer
    x = 400,117.89

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