Home / 422,820.49-634,336.57-123,301.10

Finding the Fourth Proportional to 422,820.49, 634,336.57 and 123,301.10

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Solution

The fourth proportional to 422,820.49, 634,336.57 and 123,301.10 is: 184,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,820.49 : 634,336.57 = 123,301.10 : x
  2. Step 2: Convert to fraction form
    422,820.49/634,336.57 = 123,301.10/x
  3. Step 3: Cross multiply
    422,820.49x = 634,336.57 × 123,301.10
  4. Step 4: Simplify right side
    422,820.49x = 78,214,396,851.23
  5. Step 5: Solve for x
    x = 78,214,396,851.23/422,820.49
  6. Step 6: Final answer
    x = 184,982.51

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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.