Home / 3,144,913.29-4,338,614.34-1,998,378.54

Finding the Fourth Proportional to 3,144,913.29, 4,338,614.34 and 1,998,378.54

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Solution

The fourth proportional to 3,144,913.29, 4,338,614.34 and 1,998,378.54 is: 2,756,894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144,913.29 : 4,338,614.34 = 1,998,378.54 : x
  2. Step 2: Convert to fraction form
    3,144,913.29/4,338,614.34 = 1,998,378.54/x
  3. Step 3: Cross multiply
    3,144,913.29x = 4,338,614.34 × 1,998,378.54
  4. Step 4: Simplify right side
    3,144,913.29x = 8,670,193,790,392.26
  5. Step 5: Solve for x
    x = 8,670,193,790,392.26/3,144,913.29
  6. Step 6: Final answer
    x = 2,756,894.38

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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.