Home / 721,778.86-1,082,176.21-366,107.05

Finding the Fourth Proportional to 721,778.86, 1,082,176.21 and 366,107.05

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Solution

The fourth proportional to 721,778.86, 1,082,176.21 and 366,107.05 is: 548,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,778.86 : 1,082,176.21 = 366,107.05 : x
  2. Step 2: Convert to fraction form
    721,778.86/1,082,176.21 = 366,107.05/x
  3. Step 3: Cross multiply
    721,778.86x = 1,082,176.21 × 366,107.05
  4. Step 4: Simplify right side
    721,778.86x = 396,192,339,823.28
  5. Step 5: Solve for x
    x = 396,192,339,823.28/721,778.86
  6. Step 6: Final answer
    x = 548,910.98

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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.