Home / 856,146.26-1,284,231.95-406,912.97

Finding the Fourth Proportional to 856,146.26, 1,284,231.95 and 406,912.97

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Solution

The fourth proportional to 856,146.26, 1,284,231.95 and 406,912.97 is: 610,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,146.26 : 1,284,231.95 = 406,912.97 : x
  2. Step 2: Convert to fraction form
    856,146.26/1,284,231.95 = 406,912.97/x
  3. Step 3: Cross multiply
    856,146.26x = 1,284,231.95 × 406,912.97
  4. Step 4: Simplify right side
    856,146.26x = 522,570,628,487.67
  5. Step 5: Solve for x
    x = 522,570,628,487.67/856,146.26
  6. Step 6: Final answer
    x = 610,375.42

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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.