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Finding the Fourth Proportional to 499,605.45, 689,455.50 and 273,250.95

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Solution

The fourth proportional to 499,605.45, 689,455.50 and 273,250.95 is: 377,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,605.45 : 689,455.50 = 273,250.95 : x
  2. Step 2: Convert to fraction form
    499,605.45/689,455.50 = 273,250.95/x
  3. Step 3: Cross multiply
    499,605.45x = 689,455.50 × 273,250.95
  4. Step 4: Simplify right side
    499,605.45x = 188,394,370,357.73
  5. Step 5: Solve for x
    x = 188,394,370,357.73/499,605.45
  6. Step 6: Final answer
    x = 377,086.30

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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.