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Finding the Fourth Proportional to 854.59, 1,279.16 and 593.25

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Solution

The fourth proportional to 854.59, 1,279.16 and 593.25 is: 887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.59 : 1,279.16 = 593.25 : x
  2. Step 2: Convert to fraction form
    854.59/1,279.16 = 593.25/x
  3. Step 3: Cross multiply
    854.59x = 1,279.16 × 593.25
  4. Step 4: Simplify right side
    854.59x = 758,855.27
  5. Step 5: Solve for x
    x = 758,855.27/854.59
  6. Step 6: Final answer
    x = 887.98

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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.