Home / 853,961.12-1,280,919.68-277,581.28

Finding the Fourth Proportional to 853,961.12, 1,280,919.68 and 277,581.28

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Solution

The fourth proportional to 853,961.12, 1,280,919.68 and 277,581.28 is: 416,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,961.12 : 1,280,919.68 = 277,581.28 : x
  2. Step 2: Convert to fraction form
    853,961.12/1,280,919.68 = 277,581.28/x
  3. Step 3: Cross multiply
    853,961.12x = 1,280,919.68 × 277,581.28
  4. Step 4: Simplify right side
    853,961.12x = 355,559,324,351.59
  5. Step 5: Solve for x
    x = 355,559,324,351.59/853,961.12
  6. Step 6: Final answer
    x = 416,364.77

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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.