Home / 812,502.89-1,121,144.00-449,917.42

Finding the Fourth Proportional to 812,502.89, 1,121,144.00 and 449,917.42

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Solution

The fourth proportional to 812,502.89, 1,121,144.00 and 449,917.42 is: 620,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,502.89 : 1,121,144.00 = 449,917.42 : x
  2. Step 2: Convert to fraction form
    812,502.89/1,121,144.00 = 449,917.42/x
  3. Step 3: Cross multiply
    812,502.89x = 1,121,144.00 × 449,917.42
  4. Step 4: Simplify right side
    812,502.89x = 504,422,214,250.41
  5. Step 5: Solve for x
    x = 504,422,214,250.41/812,502.89
  6. Step 6: Final answer
    x = 620,825.14

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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.