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Finding the Fourth Proportional to 419,877.12, 579,408.96 and 228,871.68

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Solution

The fourth proportional to 419,877.12, 579,408.96 and 228,871.68 is: 315,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,877.12 : 579,408.96 = 228,871.68 : x
  2. Step 2: Convert to fraction form
    419,877.12/579,408.96 = 228,871.68/x
  3. Step 3: Cross multiply
    419,877.12x = 579,408.96 × 228,871.68
  4. Step 4: Simplify right side
    419,877.12x = 132,610,302,082.25
  5. Step 5: Solve for x
    x = 132,610,302,082.25/419,877.12
  6. Step 6: Final answer
    x = 315,831.22

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