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Finding the Fourth Proportional to 882.98, 1,323.65 and 395.76

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Solution

The fourth proportional to 882.98, 1,323.65 and 395.76 is: 593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.98 : 1,323.65 = 395.76 : x
  2. Step 2: Convert to fraction form
    882.98/1,323.65 = 395.76/x
  3. Step 3: Cross multiply
    882.98x = 1,323.65 × 395.76
  4. Step 4: Simplify right side
    882.98x = 523,845.75
  5. Step 5: Solve for x
    x = 523,845.75/882.98
  6. Step 6: Final answer
    x = 593.27

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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.