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Finding the Fourth Proportional to 518,856.40, 778,284.60 and 203,208.40

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Solution

The fourth proportional to 518,856.40, 778,284.60 and 203,208.40 is: 304,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,856.40 : 778,284.60 = 203,208.40 : x
  2. Step 2: Convert to fraction form
    518,856.40/778,284.60 = 203,208.40/x
  3. Step 3: Cross multiply
    518,856.40x = 778,284.60 × 203,208.40
  4. Step 4: Simplify right side
    518,856.40x = 158,153,968,310.64
  5. Step 5: Solve for x
    x = 158,153,968,310.64/518,856.40
  6. Step 6: Final answer
    x = 304,812.60

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