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Finding the Fourth Proportional to 882.63, 1,323.77 and 443.76

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Solution

The fourth proportional to 882.63, 1,323.77 and 443.76 is: 665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.63 : 1,323.77 = 443.76 : x
  2. Step 2: Convert to fraction form
    882.63/1,323.77 = 443.76/x
  3. Step 3: Cross multiply
    882.63x = 1,323.77 × 443.76
  4. Step 4: Simplify right side
    882.63x = 587,433.96
  5. Step 5: Solve for x
    x = 587,433.96/882.63
  6. Step 6: Final answer
    x = 665.55

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1.5x scale

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.