Home / 876,286.40-1,314,429.60-343,824.80

Finding the Fourth Proportional to 876,286.40, 1,314,429.60 and 343,824.80

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Solution

The fourth proportional to 876,286.40, 1,314,429.60 and 343,824.80 is: 515,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,286.40 : 1,314,429.60 = 343,824.80 : x
  2. Step 2: Convert to fraction form
    876,286.40/1,314,429.60 = 343,824.80/x
  3. Step 3: Cross multiply
    876,286.40x = 1,314,429.60 × 343,824.80
  4. Step 4: Simplify right side
    876,286.40x = 451,933,494,334.08
  5. Step 5: Solve for x
    x = 451,933,494,334.08/876,286.40
  6. Step 6: Final answer
    x = 515,737.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.