Home / 422,828.25-634,180.86-123,228.38

Finding the Fourth Proportional to 422,828.25, 634,180.86 and 123,228.38

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Solution

The fourth proportional to 422,828.25, 634,180.86 and 123,228.38 is: 184,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,828.25 : 634,180.86 = 123,228.38 : x
  2. Step 2: Convert to fraction form
    422,828.25/634,180.86 = 123,228.38/x
  3. Step 3: Cross multiply
    422,828.25x = 634,180.86 × 123,228.38
  4. Step 4: Simplify right side
    422,828.25x = 78,149,080,004.81
  5. Step 5: Solve for x
    x = 78,149,080,004.81/422,828.25
  6. Step 6: Final answer
    x = 184,824.64

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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.