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Finding the Fourth Proportional to 458,350.13, 687,543.62 and 218,340.65

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Solution

The fourth proportional to 458,350.13, 687,543.62 and 218,340.65 is: 327,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,350.13 : 687,543.62 = 218,340.65 : x
  2. Step 2: Convert to fraction form
    458,350.13/687,543.62 = 218,340.65/x
  3. Step 3: Cross multiply
    458,350.13x = 687,543.62 × 218,340.65
  4. Step 4: Simplify right side
    458,350.13x = 150,118,716,364.73
  5. Step 5: Solve for x
    x = 150,118,716,364.73/458,350.13
  6. Step 6: Final answer
    x = 327,519.75

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