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Finding the Fourth Proportional to 882.41, 1,321.41 and 622.67

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Solution

The fourth proportional to 882.41, 1,321.41 and 622.67 is: 932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.41 : 1,321.41 = 622.67 : x
  2. Step 2: Convert to fraction form
    882.41/1,321.41 = 622.67/x
  3. Step 3: Cross multiply
    882.41x = 1,321.41 × 622.67
  4. Step 4: Simplify right side
    882.41x = 822,802.36
  5. Step 5: Solve for x
    x = 822,802.36/882.41
  6. Step 6: Final answer
    x = 932.45

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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.