Home / 724,042.39-1,086,239.17-218,573.17

Finding the Fourth Proportional to 724,042.39, 1,086,239.17 and 218,573.17

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Solution

The fourth proportional to 724,042.39, 1,086,239.17 and 218,573.17 is: 327,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,042.39 : 1,086,239.17 = 218,573.17 : x
  2. Step 2: Convert to fraction form
    724,042.39/1,086,239.17 = 218,573.17/x
  3. Step 3: Cross multiply
    724,042.39x = 1,086,239.17 × 218,573.17
  4. Step 4: Simplify right side
    724,042.39x = 237,422,738,765.07
  5. Step 5: Solve for x
    x = 237,422,738,765.07/724,042.39
  6. Step 6: Final answer
    x = 327,912.76

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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.