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Finding the Fourth Proportional to 459,545.12, 689,183.76 and 178,995.68

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Solution

The fourth proportional to 459,545.12, 689,183.76 and 178,995.68 is: 268,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,545.12 : 689,183.76 = 178,995.68 : x
  2. Step 2: Convert to fraction form
    459,545.12/689,183.76 = 178,995.68/x
  3. Step 3: Cross multiply
    459,545.12x = 689,183.76 × 178,995.68
  4. Step 4: Simplify right side
    459,545.12x = 123,360,915,766.16
  5. Step 5: Solve for x
    x = 123,360,915,766.16/459,545.12
  6. Step 6: Final answer
    x = 268,441.36

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