Home / 454,979.70-682,469.55-447,981.30

Finding the Fourth Proportional to 454,979.70, 682,469.55 and 447,981.30

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Solution

The fourth proportional to 454,979.70, 682,469.55 and 447,981.30 is: 671,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,979.70 : 682,469.55 = 447,981.30 : x
  2. Step 2: Convert to fraction form
    454,979.70/682,469.55 = 447,981.30/x
  3. Step 3: Cross multiply
    454,979.70x = 682,469.55 × 447,981.30
  4. Step 4: Simplify right side
    454,979.70x = 305,733,596,219.42
  5. Step 5: Solve for x
    x = 305,733,596,219.42/454,979.70
  6. Step 6: Final answer
    x = 671,971.95

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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.