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Finding the Fourth Proportional to 379,906.44, 569,576.52 and 127,037.40

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Solution

The fourth proportional to 379,906.44, 569,576.52 and 127,037.40 is: 190,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,906.44 : 569,576.52 = 127,037.40 : x
  2. Step 2: Convert to fraction form
    379,906.44/569,576.52 = 127,037.40/x
  3. Step 3: Cross multiply
    379,906.44x = 569,576.52 × 127,037.40
  4. Step 4: Simplify right side
    379,906.44x = 72,357,520,201.85
  5. Step 5: Solve for x
    x = 72,357,520,201.85/379,906.44
  6. Step 6: Final answer
    x = 190,461.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.