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Finding the Fourth Proportional to 499,414.42, 689,191.90 and 273,059.92

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Solution

The fourth proportional to 499,414.42, 689,191.90 and 273,059.92 is: 376,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,414.42 : 689,191.90 = 273,059.92 : x
  2. Step 2: Convert to fraction form
    499,414.42/689,191.90 = 273,059.92/x
  3. Step 3: Cross multiply
    499,414.42x = 689,191.90 × 273,059.92
  4. Step 4: Simplify right side
    499,414.42x = 188,190,682,673.02
  5. Step 5: Solve for x
    x = 188,190,682,673.02/499,414.42
  6. Step 6: Final answer
    x = 376,822.69

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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.