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Finding the Fourth Proportional to 842.41, 1,264.03 and 533.41

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Solution

The fourth proportional to 842.41, 1,264.03 and 533.41 is: 800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.41 : 1,264.03 = 533.41 : x
  2. Step 2: Convert to fraction form
    842.41/1,264.03 = 533.41/x
  3. Step 3: Cross multiply
    842.41x = 1,264.03 × 533.41
  4. Step 4: Simplify right side
    842.41x = 674,246.24
  5. Step 5: Solve for x
    x = 674,246.24/842.41
  6. Step 6: Final answer
    x = 800.38

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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.