Home / 724,202.70-1,086,822.45-408,324.30

Finding the Fourth Proportional to 724,202.70, 1,086,822.45 and 408,324.30

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Solution

The fourth proportional to 724,202.70, 1,086,822.45 and 408,324.30 is: 612,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,202.70 : 1,086,822.45 = 408,324.30 : x
  2. Step 2: Convert to fraction form
    724,202.70/1,086,822.45 = 408,324.30/x
  3. Step 3: Cross multiply
    724,202.70x = 1,086,822.45 × 408,324.30
  4. Step 4: Simplify right side
    724,202.70x = 443,776,016,120.54
  5. Step 5: Solve for x
    x = 443,776,016,120.54/724,202.70
  6. Step 6: Final answer
    x = 612,778.74

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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.