Home / 724,111.20-1,086,296.40-303,429.60

Finding the Fourth Proportional to 724,111.20, 1,086,296.40 and 303,429.60

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Solution

The fourth proportional to 724,111.20, 1,086,296.40 and 303,429.60 is: 455,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,111.20 : 1,086,296.40 = 303,429.60 : x
  2. Step 2: Convert to fraction form
    724,111.20/1,086,296.40 = 303,429.60/x
  3. Step 3: Cross multiply
    724,111.20x = 1,086,296.40 × 303,429.60
  4. Step 4: Simplify right side
    724,111.20x = 329,614,482,133.44
  5. Step 5: Solve for x
    x = 329,614,482,133.44/724,111.20
  6. Step 6: Final answer
    x = 455,198.71

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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.