Home / 958,071.56-1,322,121.30-528,391.40

Finding the Fourth Proportional to 958,071.56, 1,322,121.30 and 528,391.40

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Solution

The fourth proportional to 958,071.56, 1,322,121.30 and 528,391.40 is: 729,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,071.56 : 1,322,121.30 = 528,391.40 : x
  2. Step 2: Convert to fraction form
    958,071.56/1,322,121.30 = 528,391.40/x
  3. Step 3: Cross multiply
    958,071.56x = 1,322,121.30 × 528,391.40
  4. Step 4: Simplify right side
    958,071.56x = 698,597,524,676.82
  5. Step 5: Solve for x
    x = 698,597,524,676.82/958,071.56
  6. Step 6: Final answer
    x = 729,170.51

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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.