Home / 728,206.12-1,092,133.78-222,771.47

Finding the Fourth Proportional to 728,206.12, 1,092,133.78 and 222,771.47

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Solution

The fourth proportional to 728,206.12, 1,092,133.78 and 222,771.47 is: 334,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,206.12 : 1,092,133.78 = 222,771.47 : x
  2. Step 2: Convert to fraction form
    728,206.12/1,092,133.78 = 222,771.47/x
  3. Step 3: Cross multiply
    728,206.12x = 1,092,133.78 × 222,771.47
  4. Step 4: Simplify right side
    728,206.12x = 243,296,241,589.66
  5. Step 5: Solve for x
    x = 243,296,241,589.66/728,206.12
  6. Step 6: Final answer
    x = 334,103.54

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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.