Home / 2,140,778.15-3,204,868.60-1,429,040.87

Finding the Fourth Proportional to 2,140,778.15, 3,204,868.60 and 1,429,040.87

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Solution

The fourth proportional to 2,140,778.15, 3,204,868.60 and 1,429,040.87 is: 2,139,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,778.15 : 3,204,868.60 = 1,429,040.87 : x
  2. Step 2: Convert to fraction form
    2,140,778.15/3,204,868.60 = 1,429,040.87/x
  3. Step 3: Cross multiply
    2,140,778.15x = 3,204,868.60 × 1,429,040.87
  4. Step 4: Simplify right side
    2,140,778.15x = 4,579,888,202,121.54
  5. Step 5: Solve for x
    x = 4,579,888,202,121.54/2,140,778.15
  6. Step 6: Final answer
    x = 2,139,356.76

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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.