Home / 958,290-1,322,446.32-528,581.76

Finding the Fourth Proportional to 958,290, 1,322,446.32 and 528,581.76

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Solution

The fourth proportional to 958,290, 1,322,446.32 and 528,581.76 is: 729,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,290 : 1,322,446.32 = 528,581.76 : x
  2. Step 2: Convert to fraction form
    958,290/1,322,446.32 = 528,581.76/x
  3. Step 3: Cross multiply
    958,290x = 1,322,446.32 × 528,581.76
  4. Step 4: Simplify right side
    958,290x = 699,021,003,331.12
  5. Step 5: Solve for x
    x = 699,021,003,331.12/958,290
  6. Step 6: Final answer
    x = 729,446.20

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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.