Home / 724,288.54-1,086,170.36-324,723.64

Finding the Fourth Proportional to 724,288.54, 1,086,170.36 and 324,723.64

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Solution

The fourth proportional to 724,288.54, 1,086,170.36 and 324,723.64 is: 486,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,288.54 : 1,086,170.36 = 324,723.64 : x
  2. Step 2: Convert to fraction form
    724,288.54/1,086,170.36 = 324,723.64/x
  3. Step 3: Cross multiply
    724,288.54x = 1,086,170.36 × 324,723.64
  4. Step 4: Simplify right side
    724,288.54x = 352,705,192,959.31
  5. Step 5: Solve for x
    x = 352,705,192,959.31/724,288.54
  6. Step 6: Final answer
    x = 486,967.79

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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.