Home / 724,108.10-1,086,680.55-303,685.70

Finding the Fourth Proportional to 724,108.10, 1,086,680.55 and 303,685.70

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Solution

The fourth proportional to 724,108.10, 1,086,680.55 and 303,685.70 is: 455,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,108.10 : 1,086,680.55 = 303,685.70 : x
  2. Step 2: Convert to fraction form
    724,108.10/1,086,680.55 = 303,685.70/x
  3. Step 3: Cross multiply
    724,108.10x = 1,086,680.55 × 303,685.70
  4. Step 4: Simplify right side
    724,108.10x = 330,009,343,503.14
  5. Step 5: Solve for x
    x = 330,009,343,503.14/724,108.10
  6. Step 6: Final answer
    x = 455,745.96

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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.