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Finding the Fourth Proportional to 886.61, 1,327.57 and 573.41

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Solution

The fourth proportional to 886.61, 1,327.57 and 573.41 is: 858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.61 : 1,327.57 = 573.41 : x
  2. Step 2: Convert to fraction form
    886.61/1,327.57 = 573.41/x
  3. Step 3: Cross multiply
    886.61x = 1,327.57 × 573.41
  4. Step 4: Simplify right side
    886.61x = 761,241.91
  5. Step 5: Solve for x
    x = 761,241.91/886.61
  6. Step 6: Final answer
    x = 858.60

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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.