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Finding the Fourth Proportional to 814.83, 1,124.56 and 535.29

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Solution

The fourth proportional to 814.83, 1,124.56 and 535.29 is: 738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.83 : 1,124.56 = 535.29 : x
  2. Step 2: Convert to fraction form
    814.83/1,124.56 = 535.29/x
  3. Step 3: Cross multiply
    814.83x = 1,124.56 × 535.29
  4. Step 4: Simplify right side
    814.83x = 601,965.72
  5. Step 5: Solve for x
    x = 601,965.72/814.83
  6. Step 6: Final answer
    x = 738.76

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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.