Home / 493,517.20-681,093.96-278,709.52

Finding the Fourth Proportional to 493,517.20, 681,093.96 and 278,709.52

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Solution

The fourth proportional to 493,517.20, 681,093.96 and 278,709.52 is: 384,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,517.20 : 681,093.96 = 278,709.52 : x
  2. Step 2: Convert to fraction form
    493,517.20/681,093.96 = 278,709.52/x
  3. Step 3: Cross multiply
    493,517.20x = 681,093.96 × 278,709.52
  4. Step 4: Simplify right side
    493,517.20x = 189,827,370,666.50
  5. Step 5: Solve for x
    x = 189,827,370,666.50/493,517.20
  6. Step 6: Final answer
    x = 384,641.85

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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.