Home / 721,882.05-1,082,612.84-216,422.85

Finding the Fourth Proportional to 721,882.05, 1,082,612.84 and 216,422.85

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Solution

The fourth proportional to 721,882.05, 1,082,612.84 and 216,422.85 is: 324,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,882.05 : 1,082,612.84 = 216,422.85 : x
  2. Step 2: Convert to fraction form
    721,882.05/1,082,612.84 = 216,422.85/x
  3. Step 3: Cross multiply
    721,882.05x = 1,082,612.84 × 216,422.85
  4. Step 4: Simplify right side
    721,882.05x = 234,302,155,197.28
  5. Step 5: Solve for x
    x = 234,302,155,197.28/721,882.05
  6. Step 6: Final answer
    x = 324,571.24

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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.