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Finding the Fourth Proportional to 882.25, 1,322.98 and 471.29

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Solution

The fourth proportional to 882.25, 1,322.98 and 471.29 is: 706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.25 : 1,322.98 = 471.29 : x
  2. Step 2: Convert to fraction form
    882.25/1,322.98 = 471.29/x
  3. Step 3: Cross multiply
    882.25x = 1,322.98 × 471.29
  4. Step 4: Simplify right side
    882.25x = 623,507.24
  5. Step 5: Solve for x
    x = 623,507.24/882.25
  6. Step 6: Final answer
    x = 706.72

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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.