Home / 812,304.21-1,120,966.38-449,720.27

Finding the Fourth Proportional to 812,304.21, 1,120,966.38 and 449,720.27

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Solution

The fourth proportional to 812,304.21, 1,120,966.38 and 449,720.27 is: 620,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,304.21 : 1,120,966.38 = 449,720.27 : x
  2. Step 2: Convert to fraction form
    812,304.21/1,120,966.38 = 449,720.27/x
  3. Step 3: Cross multiply
    812,304.21x = 1,120,966.38 × 449,720.27
  4. Step 4: Simplify right side
    812,304.21x = 504,121,297,469.69
  5. Step 5: Solve for x
    x = 504,121,297,469.69/812,304.21
  6. Step 6: Final answer
    x = 620,606.53

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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.