Home / 731,121.93-1,096,770.38-257,709.33

Finding the Fourth Proportional to 731,121.93, 1,096,770.38 and 257,709.33

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Solution

The fourth proportional to 731,121.93, 1,096,770.38 and 257,709.33 is: 386,594.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,121.93 : 1,096,770.38 = 257,709.33 : x
  2. Step 2: Convert to fraction form
    731,121.93/1,096,770.38 = 257,709.33/x
  3. Step 3: Cross multiply
    731,121.93x = 1,096,770.38 × 257,709.33
  4. Step 4: Simplify right side
    731,121.93x = 282,647,958,505.10
  5. Step 5: Solve for x
    x = 282,647,958,505.10/731,121.93
  6. Step 6: Final answer
    x = 386,594.83

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1.5x scale

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.