Home / 777,811.35-1,166,449.73-378,194.61

Finding the Fourth Proportional to 777,811.35, 1,166,449.73 and 378,194.61

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Solution

The fourth proportional to 777,811.35, 1,166,449.73 and 378,194.61 is: 567,161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,811.35 : 1,166,449.73 = 378,194.61 : x
  2. Step 2: Convert to fraction form
    777,811.35/1,166,449.73 = 378,194.61/x
  3. Step 3: Cross multiply
    777,811.35x = 1,166,449.73 × 378,194.61
  4. Step 4: Simplify right side
    777,811.35x = 441,144,998,830.98
  5. Step 5: Solve for x
    x = 441,144,998,830.98/777,811.35
  6. Step 6: Final answer
    x = 567,161.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.