Home / 787,799.46-1,086,067.08-665,797.68

Finding the Fourth Proportional to 787,799.46, 1,086,067.08 and 665,797.68

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Solution

The fourth proportional to 787,799.46, 1,086,067.08 and 665,797.68 is: 917,874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,799.46 : 1,086,067.08 = 665,797.68 : x
  2. Step 2: Convert to fraction form
    787,799.46/1,086,067.08 = 665,797.68/x
  3. Step 3: Cross multiply
    787,799.46x = 1,086,067.08 × 665,797.68
  4. Step 4: Simplify right side
    787,799.46x = 723,100,942,188.38
  5. Step 5: Solve for x
    x = 723,100,942,188.38/787,799.46
  6. Step 6: Final answer
    x = 917,874.38

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Double scale
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1.5x scale

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.