Home / 680,092.85-1,020,196.38-206,782.31

Finding the Fourth Proportional to 680,092.85, 1,020,196.38 and 206,782.31

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Solution

The fourth proportional to 680,092.85, 1,020,196.38 and 206,782.31 is: 310,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,092.85 : 1,020,196.38 = 206,782.31 : x
  2. Step 2: Convert to fraction form
    680,092.85/1,020,196.38 = 206,782.31/x
  3. Step 3: Cross multiply
    680,092.85x = 1,020,196.38 × 206,782.31
  4. Step 4: Simplify right side
    680,092.85x = 210,958,564,110.04
  5. Step 5: Solve for x
    x = 210,958,564,110.04/680,092.85
  6. Step 6: Final answer
    x = 310,190.83

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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.