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Finding the Fourth Proportional to 419,597.88, 579,037.71 and 228,612.61

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Solution

The fourth proportional to 419,597.88, 579,037.71 and 228,612.61 is: 315,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,597.88 : 579,037.71 = 228,612.61 : x
  2. Step 2: Convert to fraction form
    419,597.88/579,037.71 = 228,612.61/x
  3. Step 3: Cross multiply
    419,597.88x = 579,037.71 × 228,612.61
  4. Step 4: Simplify right side
    419,597.88x = 132,375,322,171.52
  5. Step 5: Solve for x
    x = 132,375,322,171.52/419,597.88
  6. Step 6: Final answer
    x = 315,481.39

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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.