Home / 455,150.20-682,725.30-278,003.20

Finding the Fourth Proportional to 455,150.20, 682,725.30 and 278,003.20

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Solution

The fourth proportional to 455,150.20, 682,725.30 and 278,003.20 is: 417,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,150.20 : 682,725.30 = 278,003.20 : x
  2. Step 2: Convert to fraction form
    455,150.20/682,725.30 = 278,003.20/x
  3. Step 3: Cross multiply
    455,150.20x = 682,725.30 × 278,003.20
  4. Step 4: Simplify right side
    455,150.20x = 189,799,818,120.96
  5. Step 5: Solve for x
    x = 189,799,818,120.96/455,150.20
  6. Step 6: Final answer
    x = 417,004.80

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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.