Home / 813,858.18-1,123,137.78-451,297.32

Finding the Fourth Proportional to 813,858.18, 1,123,137.78 and 451,297.32

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Solution

The fourth proportional to 813,858.18, 1,123,137.78 and 451,297.32 is: 622,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,858.18 : 1,123,137.78 = 451,297.32 : x
  2. Step 2: Convert to fraction form
    813,858.18/1,123,137.78 = 451,297.32/x
  3. Step 3: Cross multiply
    813,858.18x = 1,123,137.78 × 451,297.32
  4. Step 4: Simplify right side
    813,858.18x = 506,869,070,104.75
  5. Step 5: Solve for x
    x = 506,869,070,104.75/813,858.18
  6. Step 6: Final answer
    x = 622,797.78

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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.