Home / 787,062.72-1,086,141.48-447,530.94

Finding the Fourth Proportional to 787,062.72, 1,086,141.48 and 447,530.94

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Solution

The fourth proportional to 787,062.72, 1,086,141.48 and 447,530.94 is: 617,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,062.72 : 1,086,141.48 = 447,530.94 : x
  2. Step 2: Convert to fraction form
    787,062.72/1,086,141.48 = 447,530.94/x
  3. Step 3: Cross multiply
    787,062.72x = 1,086,141.48 × 447,530.94
  4. Step 4: Simplify right side
    787,062.72x = 486,081,917,517.39
  5. Step 5: Solve for x
    x = 486,081,917,517.39/787,062.72
  6. Step 6: Final answer
    x = 617,589.81

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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.