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Finding the Fourth Proportional to 591.35, 886.27 and 518.05

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Solution

The fourth proportional to 591.35, 886.27 and 518.05 is: 776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.35 : 886.27 = 518.05 : x
  2. Step 2: Convert to fraction form
    591.35/886.27 = 518.05/x
  3. Step 3: Cross multiply
    591.35x = 886.27 × 518.05
  4. Step 4: Simplify right side
    591.35x = 459,125.15
  5. Step 5: Solve for x
    x = 459,125.15/591.35
  6. Step 6: Final answer
    x = 776.41

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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.