Home / 812,182.34-1,120,820.49-449,612.25

Finding the Fourth Proportional to 812,182.34, 1,120,820.49 and 449,612.25

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Solution

The fourth proportional to 812,182.34, 1,120,820.49 and 449,612.25 is: 620,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,182.34 : 1,120,820.49 = 449,612.25 : x
  2. Step 2: Convert to fraction form
    812,182.34/1,120,820.49 = 449,612.25/x
  3. Step 3: Cross multiply
    812,182.34x = 1,120,820.49 × 449,612.25
  4. Step 4: Simplify right side
    812,182.34x = 503,934,622,355.00
  5. Step 5: Solve for x
    x = 503,934,622,355.00/812,182.34
  6. Step 6: Final answer
    x = 620,469.81

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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.