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Finding the Fourth Proportional to 591.07, 888.41 and 577.21

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Solution

The fourth proportional to 591.07, 888.41 and 577.21 is: 867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.07 : 888.41 = 577.21 : x
  2. Step 2: Convert to fraction form
    591.07/888.41 = 577.21/x
  3. Step 3: Cross multiply
    591.07x = 888.41 × 577.21
  4. Step 4: Simplify right side
    591.07x = 512,799.14
  5. Step 5: Solve for x
    x = 512,799.14/591.07
  6. Step 6: Final answer
    x = 867.58

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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.