Home / 812,362.53-1,121,095.32-449,786.37

Finding the Fourth Proportional to 812,362.53, 1,121,095.32 and 449,786.37

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Solution

The fourth proportional to 812,362.53, 1,121,095.32 and 449,786.37 is: 620,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,362.53 : 1,121,095.32 = 449,786.37 : x
  2. Step 2: Convert to fraction form
    812,362.53/1,121,095.32 = 449,786.37/x
  3. Step 3: Cross multiply
    812,362.53x = 1,121,095.32 × 449,786.37
  4. Step 4: Simplify right side
    812,362.53x = 504,253,394,406.79
  5. Step 5: Solve for x
    x = 504,253,394,406.79/812,362.53
  6. Step 6: Final answer
    x = 620,724.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.