Home / 728,121.06-1,092,181.01-195,642.09

Finding the Fourth Proportional to 728,121.06, 1,092,181.01 and 195,642.09

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Solution

The fourth proportional to 728,121.06, 1,092,181.01 and 195,642.09 is: 293,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,121.06 : 1,092,181.01 = 195,642.09 : x
  2. Step 2: Convert to fraction form
    728,121.06/1,092,181.01 = 195,642.09/x
  3. Step 3: Cross multiply
    728,121.06x = 1,092,181.01 × 195,642.09
  4. Step 4: Simplify right side
    728,121.06x = 213,676,569,015.60
  5. Step 5: Solve for x
    x = 213,676,569,015.60/728,121.06
  6. Step 6: Final answer
    x = 293,462.97

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Double scale
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Similar ratio
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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.