Home / 422,829.41-634,337.40-123,333.43

Finding the Fourth Proportional to 422,829.41, 634,337.40 and 123,333.43

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Solution

The fourth proportional to 422,829.41, 634,337.40 and 123,333.43 is: 185,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,829.41 : 634,337.40 = 123,333.43 : x
  2. Step 2: Convert to fraction form
    422,829.41/634,337.40 = 123,333.43/x
  3. Step 3: Cross multiply
    422,829.41x = 634,337.40 × 123,333.43
  4. Step 4: Simplify right side
    422,829.41x = 78,235,007,319.28
  5. Step 5: Solve for x
    x = 78,235,007,319.28/422,829.41
  6. Step 6: Final answer
    x = 185,027.35

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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.