Home / 787,046.70-1,086,119.42-447,514.94

Finding the Fourth Proportional to 787,046.70, 1,086,119.42 and 447,514.94

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Solution

The fourth proportional to 787,046.70, 1,086,119.42 and 447,514.94 is: 617,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,046.70 : 1,086,119.42 = 447,514.94 : x
  2. Step 2: Convert to fraction form
    787,046.70/1,086,119.42 = 447,514.94/x
  3. Step 3: Cross multiply
    787,046.70x = 1,086,119.42 × 447,514.94
  4. Step 4: Simplify right side
    787,046.70x = 486,054,667,074.14
  5. Step 5: Solve for x
    x = 486,054,667,074.14/787,046.70
  6. Step 6: Final answer
    x = 617,567.76

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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.