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Finding the Fourth Proportional to 688,270.20, 949,646.70 and 401,626.68

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Solution

The fourth proportional to 688,270.20, 949,646.70 and 401,626.68 is: 554,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,270.20 : 949,646.70 = 401,626.68 : x
  2. Step 2: Convert to fraction form
    688,270.20/949,646.70 = 401,626.68/x
  3. Step 3: Cross multiply
    688,270.20x = 949,646.70 × 401,626.68
  4. Step 4: Simplify right side
    688,270.20x = 381,403,451,293.96
  5. Step 5: Solve for x
    x = 381,403,451,293.96/688,270.20
  6. Step 6: Final answer
    x = 554,147.85

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