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Finding the Fourth Proportional to 904.96, 1,249.10 and 531.96

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Solution

The fourth proportional to 904.96, 1,249.10 and 531.96 is: 734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.96 : 1,249.10 = 531.96 : x
  2. Step 2: Convert to fraction form
    904.96/1,249.10 = 531.96/x
  3. Step 3: Cross multiply
    904.96x = 1,249.10 × 531.96
  4. Step 4: Simplify right side
    904.96x = 664,471.24
  5. Step 5: Solve for x
    x = 664,471.24/904.96
  6. Step 6: Final answer
    x = 734.25

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Double scale
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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.