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Finding the Fourth Proportional to 398,662.64, 549,843 and 255,436.64

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Solution

The fourth proportional to 398,662.64, 549,843 and 255,436.64 is: 352,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,662.64 : 549,843 = 255,436.64 : x
  2. Step 2: Convert to fraction form
    398,662.64/549,843 = 255,436.64/x
  3. Step 3: Cross multiply
    398,662.64x = 549,843 × 255,436.64
  4. Step 4: Simplify right side
    398,662.64x = 140,450,048,447.52
  5. Step 5: Solve for x
    x = 140,450,048,447.52/398,662.64
  6. Step 6: Final answer
    x = 352,303.01

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