Home / 1,993,340.50-2,990,010.78-1,139,813.44

Finding the Fourth Proportional to 1,993,340.50, 2,990,010.78 and 1,139,813.44

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Solution

The fourth proportional to 1,993,340.50, 2,990,010.78 and 1,139,813.44 is: 1,709,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,340.50 : 2,990,010.78 = 1,139,813.44 : x
  2. Step 2: Convert to fraction form
    1,993,340.50/2,990,010.78 = 1,139,813.44/x
  3. Step 3: Cross multiply
    1,993,340.50x = 2,990,010.78 × 1,139,813.44
  4. Step 4: Simplify right side
    1,993,340.50x = 3,408,054,465,313.86
  5. Step 5: Solve for x
    x = 3,408,054,465,313.86/1,993,340.50
  6. Step 6: Final answer
    x = 1,709,720.18

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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.