Home / 724,286.54-1,086,167.36-324,721.64

Finding the Fourth Proportional to 724,286.54, 1,086,167.36 and 324,721.64

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Solution

The fourth proportional to 724,286.54, 1,086,167.36 and 324,721.64 is: 486,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,286.54 : 1,086,167.36 = 324,721.64 : x
  2. Step 2: Convert to fraction form
    724,286.54/1,086,167.36 = 324,721.64/x
  3. Step 3: Cross multiply
    724,286.54x = 1,086,167.36 × 324,721.64
  4. Step 4: Simplify right side
    724,286.54x = 352,702,049,980.89
  5. Step 5: Solve for x
    x = 352,702,049,980.89/724,286.54
  6. Step 6: Final answer
    x = 486,964.80

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Double scale
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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.