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Finding the Fourth Proportional to 894.85, 1,233.81 and 770.29

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Solution

The fourth proportional to 894.85, 1,233.81 and 770.29 is: 1,062.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.85 : 1,233.81 = 770.29 : x
  2. Step 2: Convert to fraction form
    894.85/1,233.81 = 770.29/x
  3. Step 3: Cross multiply
    894.85x = 1,233.81 × 770.29
  4. Step 4: Simplify right side
    894.85x = 950,391.50
  5. Step 5: Solve for x
    x = 950,391.50/894.85
  6. Step 6: Final answer
    x = 1,062.07

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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.