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Finding the Fourth Proportional to 882, 1,322.64 and 395.37

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Solution

The fourth proportional to 882, 1,322.64 and 395.37 is: 592.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    882 : 1,322.64 = 395.37 : x
  2. Step 2: Convert to fraction form
    882/1,322.64 = 395.37/x
  3. Step 3: Cross multiply
    882x = 1,322.64 × 395.37
  4. Step 4: Simplify right side
    882x = 522,932.18
  5. Step 5: Solve for x
    x = 522,932.18/882
  6. Step 6: Final answer
    x = 592.89

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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.