Home / 724,613.45-1,086,920.24-225,977.45

Finding the Fourth Proportional to 724,613.45, 1,086,920.24 and 225,977.45

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Solution

The fourth proportional to 724,613.45, 1,086,920.24 and 225,977.45 is: 338,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,613.45 : 1,086,920.24 = 225,977.45 : x
  2. Step 2: Convert to fraction form
    724,613.45/1,086,920.24 = 225,977.45/x
  3. Step 3: Cross multiply
    724,613.45x = 1,086,920.24 × 225,977.45
  4. Step 4: Simplify right side
    724,613.45x = 245,619,457,624.10
  5. Step 5: Solve for x
    x = 245,619,457,624.10/724,613.45
  6. Step 6: Final answer
    x = 338,966.19

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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.