Home / 680,399.26-1,021,229.37-343,675.93

Finding the Fourth Proportional to 680,399.26, 1,021,229.37 and 343,675.93

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Solution

The fourth proportional to 680,399.26, 1,021,229.37 and 343,675.93 is: 515,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,399.26 : 1,021,229.37 = 343,675.93 : x
  2. Step 2: Convert to fraction form
    680,399.26/1,021,229.37 = 343,675.93/x
  3. Step 3: Cross multiply
    680,399.26x = 1,021,229.37 × 343,675.93
  4. Step 4: Simplify right side
    680,399.26x = 350,971,953,478.06
  5. Step 5: Solve for x
    x = 350,971,953,478.06/680,399.26
  6. Step 6: Final answer
    x = 515,832.36

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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.