Home / 724,105.20-1,086,287.40-303,423.60

Finding the Fourth Proportional to 724,105.20, 1,086,287.40 and 303,423.60

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Solution

The fourth proportional to 724,105.20, 1,086,287.40 and 303,423.60 is: 455,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,105.20 : 1,086,287.40 = 303,423.60 : x
  2. Step 2: Convert to fraction form
    724,105.20/1,086,287.40 = 303,423.60/x
  3. Step 3: Cross multiply
    724,105.20x = 1,086,287.40 × 303,423.60
  4. Step 4: Simplify right side
    724,105.20x = 329,605,233,542.64
  5. Step 5: Solve for x
    x = 329,605,233,542.64/724,105.20
  6. Step 6: Final answer
    x = 455,189.71

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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.