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Finding the Fourth Proportional to 889.38, 1,226.22 and 574.11

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Solution

The fourth proportional to 889.38, 1,226.22 and 574.11 is: 791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.38 : 1,226.22 = 574.11 : x
  2. Step 2: Convert to fraction form
    889.38/1,226.22 = 574.11/x
  3. Step 3: Cross multiply
    889.38x = 1,226.22 × 574.11
  4. Step 4: Simplify right side
    889.38x = 703,985.16
  5. Step 5: Solve for x
    x = 703,985.16/889.38
  6. Step 6: Final answer
    x = 791.55

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Double scale
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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.