Home / 812,882.87-1,219,495.46-307,432.54

Finding the Fourth Proportional to 812,882.87, 1,219,495.46 and 307,432.54

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Solution

The fourth proportional to 812,882.87, 1,219,495.46 and 307,432.54 is: 461,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,882.87 : 1,219,495.46 = 307,432.54 : x
  2. Step 2: Convert to fraction form
    812,882.87/1,219,495.46 = 307,432.54/x
  3. Step 3: Cross multiply
    812,882.87x = 1,219,495.46 × 307,432.54
  4. Step 4: Simplify right side
    812,882.87x = 374,912,586,786.27
  5. Step 5: Solve for x
    x = 374,912,586,786.27/812,882.87
  6. Step 6: Final answer
    x = 461,213.54

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Double scale
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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.