Home / 728,121.68-1,092,181.94-195,642.71

Finding the Fourth Proportional to 728,121.68, 1,092,181.94 and 195,642.71

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Solution

The fourth proportional to 728,121.68, 1,092,181.94 and 195,642.71 is: 293,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,121.68 : 1,092,181.94 = 195,642.71 : x
  2. Step 2: Convert to fraction form
    728,121.68/1,092,181.94 = 195,642.71/x
  3. Step 3: Cross multiply
    728,121.68x = 1,092,181.94 × 195,642.71
  4. Step 4: Simplify right side
    728,121.68x = 213,677,434,045.37
  5. Step 5: Solve for x
    x = 213,677,434,045.37/728,121.68
  6. Step 6: Final answer
    x = 293,463.91

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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.