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Finding the Fourth Proportional to 826.47, 1,237.82 and 537.03

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Solution

The fourth proportional to 826.47, 1,237.82 and 537.03 is: 804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    826.47 : 1,237.82 = 537.03 : x
  2. Step 2: Convert to fraction form
    826.47/1,237.82 = 537.03/x
  3. Step 3: Cross multiply
    826.47x = 1,237.82 × 537.03
  4. Step 4: Simplify right side
    826.47x = 664,743.79
  5. Step 5: Solve for x
    x = 664,743.79/826.47
  6. Step 6: Final answer
    x = 804.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.