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Finding the Fourth Proportional to 818.30, 1,124.58 and 736.26

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Solution

The fourth proportional to 818.30, 1,124.58 and 736.26 is: 1,011.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.30 : 1,124.58 = 736.26 : x
  2. Step 2: Convert to fraction form
    818.30/1,124.58 = 736.26/x
  3. Step 3: Cross multiply
    818.30x = 1,124.58 × 736.26
  4. Step 4: Simplify right side
    818.30x = 827,983.27
  5. Step 5: Solve for x
    x = 827,983.27/818.30
  6. Step 6: Final answer
    x = 1,011.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.