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Finding the Fourth Proportional to 910.35, 1,362.83 and 879.26

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Solution

The fourth proportional to 910.35, 1,362.83 and 879.26 is: 1,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.35 : 1,362.83 = 879.26 : x
  2. Step 2: Convert to fraction form
    910.35/1,362.83 = 879.26/x
  3. Step 3: Cross multiply
    910.35x = 1,362.83 × 879.26
  4. Step 4: Simplify right side
    910.35x = 1,198,270.70
  5. Step 5: Solve for x
    x = 1,198,270.70/910.35
  6. Step 6: Final answer
    x = 1,316.27

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