Home / 422,822.06-634,338.92-123,302.67

Finding the Fourth Proportional to 422,822.06, 634,338.92 and 123,302.67

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Solution

The fourth proportional to 422,822.06, 634,338.92 and 123,302.67 is: 184,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,822.06 : 634,338.92 = 123,302.67 : x
  2. Step 2: Convert to fraction form
    422,822.06/634,338.92 = 123,302.67/x
  3. Step 3: Cross multiply
    422,822.06x = 634,338.92 × 123,302.67
  4. Step 4: Simplify right side
    422,822.06x = 78,215,682,520.92
  5. Step 5: Solve for x
    x = 78,215,682,520.92/422,822.06
  6. Step 6: Final answer
    x = 184,984.87

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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.