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Finding the Fourth Proportional to 882.18, 1,322.59 and 535.42

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Solution

The fourth proportional to 882.18, 1,322.59 and 535.42 is: 802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.18 : 1,322.59 = 535.42 : x
  2. Step 2: Convert to fraction form
    882.18/1,322.59 = 535.42/x
  3. Step 3: Cross multiply
    882.18x = 1,322.59 × 535.42
  4. Step 4: Simplify right side
    882.18x = 708,141.14
  5. Step 5: Solve for x
    x = 708,141.14/882.18
  6. Step 6: Final answer
    x = 802.72

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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.