Home / 2,987,392.05-4,481,081.19-1,280,428.54

Finding the Fourth Proportional to 2,987,392.05, 4,481,081.19 and 1,280,428.54

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Solution

The fourth proportional to 2,987,392.05, 4,481,081.19 and 1,280,428.54 is: 1,920,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,392.05 : 4,481,081.19 = 1,280,428.54 : x
  2. Step 2: Convert to fraction form
    2,987,392.05/4,481,081.19 = 1,280,428.54/x
  3. Step 3: Cross multiply
    2,987,392.05x = 4,481,081.19 × 1,280,428.54
  4. Step 4: Simplify right side
    2,987,392.05x = 5,737,704,234,530.46
  5. Step 5: Solve for x
    x = 5,737,704,234,530.46/2,987,392.05
  6. Step 6: Final answer
    x = 1,920,639.86

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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.