Home / 724,743.20-1,086,006.36-303,789.44

Finding the Fourth Proportional to 724,743.20, 1,086,006.36 and 303,789.44

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Solution

The fourth proportional to 724,743.20, 1,086,006.36 and 303,789.44 is: 455,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,743.20 : 1,086,006.36 = 303,789.44 : x
  2. Step 2: Convert to fraction form
    724,743.20/1,086,006.36 = 303,789.44/x
  3. Step 3: Cross multiply
    724,743.20x = 1,086,006.36 × 303,789.44
  4. Step 4: Simplify right side
    724,743.20x = 329,917,263,940.84
  5. Step 5: Solve for x
    x = 329,917,263,940.84/724,743.20
  6. Step 6: Final answer
    x = 455,219.54

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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.