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Finding the Fourth Proportional to 419,696.60, 579,164.44 and 228,705.88

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Solution

The fourth proportional to 419,696.60, 579,164.44 and 228,705.88 is: 315,604.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,696.60 : 579,164.44 = 228,705.88 : x
  2. Step 2: Convert to fraction form
    419,696.60/579,164.44 = 228,705.88/x
  3. Step 3: Cross multiply
    419,696.60x = 579,164.44 × 228,705.88
  4. Step 4: Simplify right side
    419,696.60x = 132,458,312,914.91
  5. Step 5: Solve for x
    x = 132,458,312,914.91/419,696.60
  6. Step 6: Final answer
    x = 315,604.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.