Home / 721,775.61-1,082,171.34-366,103.80

Finding the Fourth Proportional to 721,775.61, 1,082,171.34 and 366,103.80

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Solution

The fourth proportional to 721,775.61, 1,082,171.34 and 366,103.80 is: 548,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,775.61 : 1,082,171.34 = 366,103.80 : x
  2. Step 2: Convert to fraction form
    721,775.61/1,082,171.34 = 366,103.80/x
  3. Step 3: Cross multiply
    721,775.61x = 1,082,171.34 × 366,103.80
  4. Step 4: Simplify right side
    721,775.61x = 396,187,039,825.09
  5. Step 5: Solve for x
    x = 396,187,039,825.09/721,775.61
  6. Step 6: Final answer
    x = 548,906.11

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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.