Home / 455,322.05-682,864.07-135,387.76

Finding the Fourth Proportional to 455,322.05, 682,864.07 and 135,387.76

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Solution

The fourth proportional to 455,322.05, 682,864.07 and 135,387.76 is: 203,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,322.05 : 682,864.07 = 135,387.76 : x
  2. Step 2: Convert to fraction form
    455,322.05/682,864.07 = 135,387.76/x
  3. Step 3: Cross multiply
    455,322.05x = 682,864.07 × 135,387.76
  4. Step 4: Simplify right side
    455,322.05x = 92,451,435,453.09
  5. Step 5: Solve for x
    x = 92,451,435,453.09/455,322.05
  6. Step 6: Final answer
    x = 203,046.25

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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.