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Finding the Fourth Proportional to 664,446.71, 996,670.07 and 379,937.69

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Solution

The fourth proportional to 664,446.71, 996,670.07 and 379,937.69 is: 569,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,446.71 : 996,670.07 = 379,937.69 : x
  2. Step 2: Convert to fraction form
    664,446.71/996,670.07 = 379,937.69/x
  3. Step 3: Cross multiply
    664,446.71x = 996,670.07 × 379,937.69
  4. Step 4: Simplify right side
    664,446.71x = 378,672,524,087.94
  5. Step 5: Solve for x
    x = 378,672,524,087.94/664,446.71
  6. Step 6: Final answer
    x = 569,906.54

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Double scale
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Similar ratio
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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.