Home / 455,198.20-682,797.30-278,051.20

Finding the Fourth Proportional to 455,198.20, 682,797.30 and 278,051.20

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Solution

The fourth proportional to 455,198.20, 682,797.30 and 278,051.20 is: 417,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,198.20 : 682,797.30 = 278,051.20 : x
  2. Step 2: Convert to fraction form
    455,198.20/682,797.30 = 278,051.20/x
  3. Step 3: Cross multiply
    455,198.20x = 682,797.30 × 278,051.20
  4. Step 4: Simplify right side
    455,198.20x = 189,852,608,621.76
  5. Step 5: Solve for x
    x = 189,852,608,621.76/455,198.20
  6. Step 6: Final answer
    x = 417,076.80

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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.