Home / 724,000.82-1,086,157.23-218,519.54

Finding the Fourth Proportional to 724,000.82, 1,086,157.23 and 218,519.54

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Solution

The fourth proportional to 724,000.82, 1,086,157.23 and 218,519.54 is: 327,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,000.82 : 1,086,157.23 = 218,519.54 : x
  2. Step 2: Convert to fraction form
    724,000.82/1,086,157.23 = 218,519.54/x
  3. Step 3: Cross multiply
    724,000.82x = 1,086,157.23 × 218,519.54
  4. Step 4: Simplify right side
    724,000.82x = 237,346,578,267.27
  5. Step 5: Solve for x
    x = 237,346,578,267.27/724,000.82
  6. Step 6: Final answer
    x = 327,826.39

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Double scale
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Similar ratio
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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.