Home / 1,990,042.20-2,983,313.70-1,191,641.40

Finding the Fourth Proportional to 1,990,042.20, 2,983,313.70 and 1,191,641.40

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Solution

The fourth proportional to 1,990,042.20, 2,983,313.70 and 1,191,641.40 is: 1,786,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,042.20 : 2,983,313.70 = 1,191,641.40 : x
  2. Step 2: Convert to fraction form
    1,990,042.20/2,983,313.70 = 1,191,641.40/x
  3. Step 3: Cross multiply
    1,990,042.20x = 2,983,313.70 × 1,191,641.40
  4. Step 4: Simplify right side
    1,990,042.20x = 3,555,040,114,107.18
  5. Step 5: Solve for x
    x = 3,555,040,114,107.18/1,990,042.20
  6. Step 6: Final answer
    x = 1,786,414.44

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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.