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Finding the Fourth Proportional to 591.62, 886.59 and 436.33

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Solution

The fourth proportional to 591.62, 886.59 and 436.33 is: 653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.62 : 886.59 = 436.33 : x
  2. Step 2: Convert to fraction form
    591.62/886.59 = 436.33/x
  3. Step 3: Cross multiply
    591.62x = 886.59 × 436.33
  4. Step 4: Simplify right side
    591.62x = 386,845.81
  5. Step 5: Solve for x
    x = 386,845.81/591.62
  6. Step 6: Final answer
    x = 653.88

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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.