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Finding the Fourth Proportional to 594.20, 891.30 and 285.98

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Solution

The fourth proportional to 594.20, 891.30 and 285.98 is: 428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.20 : 891.30 = 285.98 : x
  2. Step 2: Convert to fraction form
    594.20/891.30 = 285.98/x
  3. Step 3: Cross multiply
    594.20x = 891.30 × 285.98
  4. Step 4: Simplify right side
    594.20x = 254,893.97
  5. Step 5: Solve for x
    x = 254,893.97/594.20
  6. Step 6: Final answer
    x = 428.97

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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.