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Finding the Fourth Proportional to 595.03, 819.87 and 489.76

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Solution

The fourth proportional to 595.03, 819.87 and 489.76 is: 674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.03 : 819.87 = 489.76 : x
  2. Step 2: Convert to fraction form
    595.03/819.87 = 489.76/x
  3. Step 3: Cross multiply
    595.03x = 819.87 × 489.76
  4. Step 4: Simplify right side
    595.03x = 401,539.53
  5. Step 5: Solve for x
    x = 401,539.53/595.03
  6. Step 6: Final answer
    x = 674.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.