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Finding the Fourth Proportional to 500,345.58, 690,463.53 and 285,481.74

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Solution

The fourth proportional to 500,345.58, 690,463.53 and 285,481.74 is: 393,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,345.58 : 690,463.53 = 285,481.74 : x
  2. Step 2: Convert to fraction form
    500,345.58/690,463.53 = 285,481.74/x
  3. Step 3: Cross multiply
    500,345.58x = 690,463.53 × 285,481.74
  4. Step 4: Simplify right side
    500,345.58x = 197,114,729,950.94
  5. Step 5: Solve for x
    x = 197,114,729,950.94/500,345.58
  6. Step 6: Final answer
    x = 393,957.17

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