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Finding the Fourth Proportional to 499,993.56, 689,974.20 and 273,634.20

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Solution

The fourth proportional to 499,993.56, 689,974.20 and 273,634.20 is: 377,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,993.56 : 689,974.20 = 273,634.20 : x
  2. Step 2: Convert to fraction form
    499,993.56/689,974.20 = 273,634.20/x
  3. Step 3: Cross multiply
    499,993.56x = 689,974.20 × 273,634.20
  4. Step 4: Simplify right side
    499,993.56x = 188,800,538,237.64
  5. Step 5: Solve for x
    x = 188,800,538,237.64/499,993.56
  6. Step 6: Final answer
    x = 377,605.94

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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.