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Finding the Fourth Proportional to 419,754.60, 579,244.46 and 228,763.88

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Solution

The fourth proportional to 419,754.60, 579,244.46 and 228,763.88 is: 315,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,754.60 : 579,244.46 = 228,763.88 : x
  2. Step 2: Convert to fraction form
    419,754.60/579,244.46 = 228,763.88/x
  3. Step 3: Cross multiply
    419,754.60x = 579,244.46 × 228,763.88
  4. Step 4: Simplify right side
    419,754.60x = 132,510,210,138.11
  5. Step 5: Solve for x
    x = 132,510,210,138.11/419,754.60
  6. Step 6: Final answer
    x = 315,684.95

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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.