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Finding the Fourth Proportional to 419,645.16, 579,110.40 and 228,658.60

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Solution

The fourth proportional to 419,645.16, 579,110.40 and 228,658.60 is: 315,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,645.16 : 579,110.40 = 228,658.60 : x
  2. Step 2: Convert to fraction form
    419,645.16/579,110.40 = 228,658.60/x
  3. Step 3: Cross multiply
    419,645.16x = 579,110.40 × 228,658.60
  4. Step 4: Simplify right side
    419,645.16x = 132,418,573,309.44
  5. Step 5: Solve for x
    x = 132,418,573,309.44/419,645.16
  6. Step 6: Final answer
    x = 315,548.91

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