Home / 958,660.72-1,322,956.08-528,940.60

Finding the Fourth Proportional to 958,660.72, 1,322,956.08 and 528,940.60

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Solution

The fourth proportional to 958,660.72, 1,322,956.08 and 528,940.60 is: 729,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,660.72 : 1,322,956.08 = 528,940.60 : x
  2. Step 2: Convert to fraction form
    958,660.72/1,322,956.08 = 528,940.60/x
  3. Step 3: Cross multiply
    958,660.72x = 1,322,956.08 × 528,940.60
  4. Step 4: Simplify right side
    958,660.72x = 699,765,182,728.85
  5. Step 5: Solve for x
    x = 699,765,182,728.85/958,660.72
  6. Step 6: Final answer
    x = 729,940.39

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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.