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Finding the Fourth Proportional to 531,279.81, 733,144.67 and 289,557.18

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Solution

The fourth proportional to 531,279.81, 733,144.67 and 289,557.18 is: 399,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,279.81 : 733,144.67 = 289,557.18 : x
  2. Step 2: Convert to fraction form
    531,279.81/733,144.67 = 289,557.18/x
  3. Step 3: Cross multiply
    531,279.81x = 733,144.67 × 289,557.18
  4. Step 4: Simplify right side
    531,279.81x = 212,287,302,815.28
  5. Step 5: Solve for x
    x = 212,287,302,815.28/531,279.81
  6. Step 6: Final answer
    x = 399,577.21

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