Home / 809,720.15-1,117,414.04-447,168.60

Finding the Fourth Proportional to 809,720.15, 1,117,414.04 and 447,168.60

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Solution

The fourth proportional to 809,720.15, 1,117,414.04 and 447,168.60 is: 617,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,720.15 : 1,117,414.04 = 447,168.60 : x
  2. Step 2: Convert to fraction form
    809,720.15/1,117,414.04 = 447,168.60/x
  3. Step 3: Cross multiply
    809,720.15x = 1,117,414.04 × 447,168.60
  4. Step 4: Simplify right side
    809,720.15x = 499,672,469,651.30
  5. Step 5: Solve for x
    x = 499,672,469,651.30/809,720.15
  6. Step 6: Final answer
    x = 617,092.80

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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.