Home / 787,057.22-1,086,133.88-447,525.44

Finding the Fourth Proportional to 787,057.22, 1,086,133.88 and 447,525.44

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Solution

The fourth proportional to 787,057.22, 1,086,133.88 and 447,525.44 is: 617,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,057.22 : 1,086,133.88 = 447,525.44 : x
  2. Step 2: Convert to fraction form
    787,057.22/1,086,133.88 = 447,525.44/x
  3. Step 3: Cross multiply
    787,057.22x = 1,086,133.88 × 447,525.44
  4. Step 4: Simplify right side
    787,057.22x = 486,072,542,545.91
  5. Step 5: Solve for x
    x = 486,072,542,545.91/787,057.22
  6. Step 6: Final answer
    x = 617,582.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.