Home / 455,319.70-682,860.55-135,385.41

Finding the Fourth Proportional to 455,319.70, 682,860.55 and 135,385.41

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Solution

The fourth proportional to 455,319.70, 682,860.55 and 135,385.41 is: 203,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,319.70 : 682,860.55 = 135,385.41 : x
  2. Step 2: Convert to fraction form
    455,319.70/682,860.55 = 135,385.41/x
  3. Step 3: Cross multiply
    455,319.70x = 682,860.55 × 135,385.41
  4. Step 4: Simplify right side
    455,319.70x = 92,449,355,873.04
  5. Step 5: Solve for x
    x = 92,449,355,873.04/455,319.70
  6. Step 6: Final answer
    x = 203,042.73

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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.