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Finding the Fourth Proportional to 834.22, 1,252.09 and 444.55

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Solution

The fourth proportional to 834.22, 1,252.09 and 444.55 is: 667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.22 : 1,252.09 = 444.55 : x
  2. Step 2: Convert to fraction form
    834.22/1,252.09 = 444.55/x
  3. Step 3: Cross multiply
    834.22x = 1,252.09 × 444.55
  4. Step 4: Simplify right side
    834.22x = 556,612.37
  5. Step 5: Solve for x
    x = 556,612.37/834.22
  6. Step 6: Final answer
    x = 667.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.