Home / 812,162.48-1,120,767.76-449,586.56

Finding the Fourth Proportional to 812,162.48, 1,120,767.76 and 449,586.56

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Solution

The fourth proportional to 812,162.48, 1,120,767.76 and 449,586.56 is: 620,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,162.48 : 1,120,767.76 = 449,586.56 : x
  2. Step 2: Convert to fraction form
    812,162.48/1,120,767.76 = 449,586.56/x
  3. Step 3: Cross multiply
    812,162.48x = 1,120,767.76 × 449,586.56
  4. Step 4: Simplify right side
    812,162.48x = 503,882,121,777.31
  5. Step 5: Solve for x
    x = 503,882,121,777.31/812,162.48
  6. Step 6: Final answer
    x = 620,420.34

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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.