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Finding the Fourth Proportional to 499,869, 689,819.22 and 273,514.50

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Solution

The fourth proportional to 499,869, 689,819.22 and 273,514.50 is: 377,450.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,869 : 689,819.22 = 273,514.50 : x
  2. Step 2: Convert to fraction form
    499,869/689,819.22 = 273,514.50/x
  3. Step 3: Cross multiply
    499,869x = 689,819.22 × 273,514.50
  4. Step 4: Simplify right side
    499,869x = 188,675,559,048.69
  5. Step 5: Solve for x
    x = 188,675,559,048.69/499,869
  6. Step 6: Final answer
    x = 377,450.01

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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.