Home / 851,512.29-1,277,298.60-211,819.36

Finding the Fourth Proportional to 851,512.29, 1,277,298.60 and 211,819.36

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Solution

The fourth proportional to 851,512.29, 1,277,298.60 and 211,819.36 is: 317,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,512.29 : 1,277,298.60 = 211,819.36 : x
  2. Step 2: Convert to fraction form
    851,512.29/1,277,298.60 = 211,819.36/x
  3. Step 3: Cross multiply
    851,512.29x = 1,277,298.60 × 211,819.36
  4. Step 4: Simplify right side
    851,512.29x = 270,556,571,980.90
  5. Step 5: Solve for x
    x = 270,556,571,980.90/851,512.29
  6. Step 6: Final answer
    x = 317,736.54

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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.