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Finding the Fourth Proportional to 641,688.91, 963,479.59 and 357,933.87

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Solution

The fourth proportional to 641,688.91, 963,479.59 and 357,933.87 is: 537,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,688.91 : 963,479.59 = 357,933.87 : x
  2. Step 2: Convert to fraction form
    641,688.91/963,479.59 = 357,933.87/x
  3. Step 3: Cross multiply
    641,688.91x = 963,479.59 × 357,933.87
  4. Step 4: Simplify right side
    641,688.91x = 344,861,978,314.71
  5. Step 5: Solve for x
    x = 344,861,978,314.71/641,688.91
  6. Step 6: Final answer
    x = 537,428.61

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