Home / 2,188,237.92-3,019,920.48-1,221,556.92

Finding the Fourth Proportional to 2,188,237.92, 3,019,920.48 and 1,221,556.92

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Solution

The fourth proportional to 2,188,237.92, 3,019,920.48 and 1,221,556.92 is: 1,685,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,237.92 : 3,019,920.48 = 1,221,556.92 : x
  2. Step 2: Convert to fraction form
    2,188,237.92/3,019,920.48 = 1,221,556.92/x
  3. Step 3: Cross multiply
    2,188,237.92x = 3,019,920.48 × 1,221,556.92
  4. Step 4: Simplify right side
    2,188,237.92x = 3,689,004,760,193.72
  5. Step 5: Solve for x
    x = 3,689,004,760,193.72/2,188,237.92
  6. Step 6: Final answer
    x = 1,685,833.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.