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Finding the Fourth Proportional to 379,452.55, 568,158.84 and 289,064.65

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Solution

The fourth proportional to 379,452.55, 568,158.84 and 289,064.65 is: 432,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,452.55 : 568,158.84 = 289,064.65 : x
  2. Step 2: Convert to fraction form
    379,452.55/568,158.84 = 289,064.65/x
  3. Step 3: Cross multiply
    379,452.55x = 568,158.84 × 289,064.65
  4. Step 4: Simplify right side
    379,452.55x = 164,234,636,229.01
  5. Step 5: Solve for x
    x = 164,234,636,229.01/379,452.55
  6. Step 6: Final answer
    x = 432,819.96

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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.