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Finding the Fourth Proportional to 305,944.40, 458,468.40 and 274,354.40

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Solution

The fourth proportional to 305,944.40, 458,468.40 and 274,354.40 is: 411,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,944.40 : 458,468.40 = 274,354.40 : x
  2. Step 2: Convert to fraction form
    305,944.40/458,468.40 = 274,354.40/x
  3. Step 3: Cross multiply
    305,944.40x = 458,468.40 × 274,354.40
  4. Step 4: Simplify right side
    305,944.40x = 125,782,822,800.96
  5. Step 5: Solve for x
    x = 125,782,822,800.96/305,944.40
  6. Step 6: Final answer
    x = 411,129.68

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