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Finding the Fourth Proportional to 499,599.75, 689,447.67 and 273,245.25

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Solution

The fourth proportional to 499,599.75, 689,447.67 and 273,245.25 is: 377,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,599.75 : 689,447.67 = 273,245.25 : x
  2. Step 2: Convert to fraction form
    499,599.75/689,447.67 = 273,245.25/x
  3. Step 3: Cross multiply
    499,599.75x = 689,447.67 × 273,245.25
  4. Step 4: Simplify right side
    499,599.75x = 188,388,300,951.07
  5. Step 5: Solve for x
    x = 188,388,300,951.07/499,599.75
  6. Step 6: Final answer
    x = 377,078.45

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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.