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Finding the Fourth Proportional to 736.59, 1,015.83 and 612.66

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Solution

The fourth proportional to 736.59, 1,015.83 and 612.66 is: 844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.59 : 1,015.83 = 612.66 : x
  2. Step 2: Convert to fraction form
    736.59/1,015.83 = 612.66/x
  3. Step 3: Cross multiply
    736.59x = 1,015.83 × 612.66
  4. Step 4: Simplify right side
    736.59x = 622,358.41
  5. Step 5: Solve for x
    x = 622,358.41/736.59
  6. Step 6: Final answer
    x = 844.92

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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.