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Finding the Fourth Proportional to 531,178.49, 733,004.98 and 289,455.88

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Solution

The fourth proportional to 531,178.49, 733,004.98 and 289,455.88 is: 399,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,178.49 : 733,004.98 = 289,455.88 : x
  2. Step 2: Convert to fraction form
    531,178.49/733,004.98 = 289,455.88/x
  3. Step 3: Cross multiply
    531,178.49x = 733,004.98 × 289,455.88
  4. Step 4: Simplify right side
    531,178.49x = 212,172,600,348.52
  5. Step 5: Solve for x
    x = 212,172,600,348.52/531,178.49
  6. Step 6: Final answer
    x = 399,437.48

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