Home / 853,211.25-1,280,027.39-254,170.08

Finding the Fourth Proportional to 853,211.25, 1,280,027.39 and 254,170.08

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Solution

The fourth proportional to 853,211.25, 1,280,027.39 and 254,170.08 is: 381,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,211.25 : 1,280,027.39 = 254,170.08 : x
  2. Step 2: Convert to fraction form
    853,211.25/1,280,027.39 = 254,170.08/x
  3. Step 3: Cross multiply
    853,211.25x = 1,280,027.39 × 254,170.08
  4. Step 4: Simplify right side
    853,211.25x = 325,344,662,847.64
  5. Step 5: Solve for x
    x = 325,344,662,847.64/853,211.25
  6. Step 6: Final answer
    x = 381,317.83

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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.