Home / 958,640.72-1,322,928.42-528,920.60

Finding the Fourth Proportional to 958,640.72, 1,322,928.42 and 528,920.60

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Solution

The fourth proportional to 958,640.72, 1,322,928.42 and 528,920.60 is: 729,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,640.72 : 1,322,928.42 = 528,920.60 : x
  2. Step 2: Convert to fraction form
    958,640.72/1,322,928.42 = 528,920.60/x
  3. Step 3: Cross multiply
    958,640.72x = 1,322,928.42 × 528,920.60
  4. Step 4: Simplify right side
    958,640.72x = 699,724,093,663.45
  5. Step 5: Solve for x
    x = 699,724,093,663.45/958,640.72
  6. Step 6: Final answer
    x = 729,912.76

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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.