Home / 728,142.39-1,092,212.64-195,663.43

Finding the Fourth Proportional to 728,142.39, 1,092,212.64 and 195,663.43

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Solution

The fourth proportional to 728,142.39, 1,092,212.64 and 195,663.43 is: 293,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,142.39 : 1,092,212.64 = 195,663.43 : x
  2. Step 2: Convert to fraction form
    728,142.39/1,092,212.64 = 195,663.43/x
  3. Step 3: Cross multiply
    728,142.39x = 1,092,212.64 × 195,663.43
  4. Step 4: Simplify right side
    728,142.39x = 213,706,074,162.29
  5. Step 5: Solve for x
    x = 213,706,074,162.29/728,142.39
  6. Step 6: Final answer
    x = 293,494.89

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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.