Home / 859,556.12-1,289,706.78-327,228.44

Finding the Fourth Proportional to 859,556.12, 1,289,706.78 and 327,228.44

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Solution

The fourth proportional to 859,556.12, 1,289,706.78 and 327,228.44 is: 490,984.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,556.12 : 1,289,706.78 = 327,228.44 : x
  2. Step 2: Convert to fraction form
    859,556.12/1,289,706.78 = 327,228.44/x
  3. Step 3: Cross multiply
    859,556.12x = 1,289,706.78 × 327,228.44
  4. Step 4: Simplify right side
    859,556.12x = 422,028,737,676.82
  5. Step 5: Solve for x
    x = 422,028,737,676.82/859,556.12
  6. Step 6: Final answer
    x = 490,984.51

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1.5x scale

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.