Home / 680,741.58-1,020,586.39-343,608.70

Finding the Fourth Proportional to 680,741.58, 1,020,586.39 and 343,608.70

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Solution

The fourth proportional to 680,741.58, 1,020,586.39 and 343,608.70 is: 515,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,741.58 : 1,020,586.39 = 343,608.70 : x
  2. Step 2: Convert to fraction form
    680,741.58/1,020,586.39 = 343,608.70/x
  3. Step 3: Cross multiply
    680,741.58x = 1,020,586.39 × 343,608.70
  4. Step 4: Simplify right side
    680,741.58x = 350,682,362,705.59
  5. Step 5: Solve for x
    x = 350,682,362,705.59/680,741.58
  6. Step 6: Final answer
    x = 515,147.56

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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.