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Finding the Fourth Proportional to 592.33, 888.41 and 428.58

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Solution

The fourth proportional to 592.33, 888.41 and 428.58 is: 642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.33 : 888.41 = 428.58 : x
  2. Step 2: Convert to fraction form
    592.33/888.41 = 428.58/x
  3. Step 3: Cross multiply
    592.33x = 888.41 × 428.58
  4. Step 4: Simplify right side
    592.33x = 380,752.61
  5. Step 5: Solve for x
    x = 380,752.61/592.33
  6. Step 6: Final answer
    x = 642.81

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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.