Home / 728,142.60-1,092,212.98-195,663.64

Finding the Fourth Proportional to 728,142.60, 1,092,212.98 and 195,663.64

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Solution

The fourth proportional to 728,142.60, 1,092,212.98 and 195,663.64 is: 293,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,142.60 : 1,092,212.98 = 195,663.64 : x
  2. Step 2: Convert to fraction form
    728,142.60/1,092,212.98 = 195,663.64/x
  3. Step 3: Cross multiply
    728,142.60x = 1,092,212.98 × 195,663.64
  4. Step 4: Simplify right side
    728,142.60x = 213,706,367,322.05
  5. Step 5: Solve for x
    x = 213,706,367,322.05/728,142.60
  6. Step 6: Final answer
    x = 293,495.21

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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.