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Finding the Fourth Proportional to 873.27, 1,310.35 and 580.97

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Solution

The fourth proportional to 873.27, 1,310.35 and 580.97 is: 871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.27 : 1,310.35 = 580.97 : x
  2. Step 2: Convert to fraction form
    873.27/1,310.35 = 580.97/x
  3. Step 3: Cross multiply
    873.27x = 1,310.35 × 580.97
  4. Step 4: Simplify right side
    873.27x = 761,264.58
  5. Step 5: Solve for x
    x = 761,264.58/873.27
  6. Step 6: Final answer
    x = 871.74

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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.