Home / 3,856,819.86-5,785,165.40-938,943.50

Finding the Fourth Proportional to 3,856,819.86, 5,785,165.40 and 938,943.50

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Solution

The fourth proportional to 3,856,819.86, 5,785,165.40 and 938,943.50 is: 1,408,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856,819.86 : 5,785,165.40 = 938,943.50 : x
  2. Step 2: Convert to fraction form
    3,856,819.86/5,785,165.40 = 938,943.50/x
  3. Step 3: Cross multiply
    3,856,819.86x = 5,785,165.40 × 938,943.50
  4. Step 4: Simplify right side
    3,856,819.86x = 5,431,943,415,134.36
  5. Step 5: Solve for x
    x = 5,431,943,415,134.36/3,856,819.86
  6. Step 6: Final answer
    x = 1,408,399.57

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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.