Home / 813,313.21-1,122,372.21-450,791.56

Finding the Fourth Proportional to 813,313.21, 1,122,372.21 and 450,791.56

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Solution

The fourth proportional to 813,313.21, 1,122,372.21 and 450,791.56 is: 622,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,313.21 : 1,122,372.21 = 450,791.56 : x
  2. Step 2: Convert to fraction form
    813,313.21/1,122,372.21 = 450,791.56/x
  3. Step 3: Cross multiply
    813,313.21x = 1,122,372.21 × 450,791.56
  4. Step 4: Simplify right side
    813,313.21x = 505,955,919,446.55
  5. Step 5: Solve for x
    x = 505,955,919,446.55/813,313.21
  6. Step 6: Final answer
    x = 622,092.34

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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.