Home / 723,775.20-1,085,137.92-486,529.44

Finding the Fourth Proportional to 723,775.20, 1,085,137.92 and 486,529.44

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Solution

The fourth proportional to 723,775.20, 1,085,137.92 and 486,529.44 is: 729,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,775.20 : 1,085,137.92 = 486,529.44 : x
  2. Step 2: Convert to fraction form
    723,775.20/1,085,137.92 = 486,529.44/x
  3. Step 3: Cross multiply
    723,775.20x = 1,085,137.92 × 486,529.44
  4. Step 4: Simplify right side
    723,775.20x = 527,951,544,540.37
  5. Step 5: Solve for x
    x = 527,951,544,540.37/723,775.20
  6. Step 6: Final answer
    x = 729,441.33

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1.5x scale

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.