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Finding the Fourth Proportional to 591.89, 888.27 and 477.70

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Solution

The fourth proportional to 591.89, 888.27 and 477.70 is: 716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.89 : 888.27 = 477.70 : x
  2. Step 2: Convert to fraction form
    591.89/888.27 = 477.70/x
  3. Step 3: Cross multiply
    591.89x = 888.27 × 477.70
  4. Step 4: Simplify right side
    591.89x = 424,322.57
  5. Step 5: Solve for x
    x = 424,322.57/591.89
  6. Step 6: Final answer
    x = 716.90

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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.