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Finding the Fourth Proportional to 736.86, 1,017 and 612.36

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Solution

The fourth proportional to 736.86, 1,017 and 612.36 is: 845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.86 : 1,017 = 612.36 : x
  2. Step 2: Convert to fraction form
    736.86/1,017 = 612.36/x
  3. Step 3: Cross multiply
    736.86x = 1,017 × 612.36
  4. Step 4: Simplify right side
    736.86x = 622,770.12
  5. Step 5: Solve for x
    x = 622,770.12/736.86
  6. Step 6: Final answer
    x = 845.17

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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.