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Finding the Fourth Proportional to 736.85, 1,015.98 and 610.85

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Solution

The fourth proportional to 736.85, 1,015.98 and 610.85 is: 842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.85 : 1,015.98 = 610.85 : x
  2. Step 2: Convert to fraction form
    736.85/1,015.98 = 610.85/x
  3. Step 3: Cross multiply
    736.85x = 1,015.98 × 610.85
  4. Step 4: Simplify right side
    736.85x = 620,611.38
  5. Step 5: Solve for x
    x = 620,611.38/736.85
  6. Step 6: Final answer
    x = 842.25

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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.