Home / 2,819,408.72-4,229,076.42-689,511.29

Finding the Fourth Proportional to 2,819,408.72, 4,229,076.42 and 689,511.29

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Solution

The fourth proportional to 2,819,408.72, 4,229,076.42 and 689,511.29 is: 1,034,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,408.72 : 4,229,076.42 = 689,511.29 : x
  2. Step 2: Convert to fraction form
    2,819,408.72/4,229,076.42 = 689,511.29/x
  3. Step 3: Cross multiply
    2,819,408.72x = 4,229,076.42 × 689,511.29
  4. Step 4: Simplify right side
    2,819,408.72x = 2,915,995,916,717.40
  5. Step 5: Solve for x
    x = 2,915,995,916,717.40/2,819,408.72
  6. Step 6: Final answer
    x = 1,034,257.96

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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.