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Finding the Fourth Proportional to 886,819.90, 1,330,229.85 and 872,823.10

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Solution

The fourth proportional to 886,819.90, 1,330,229.85 and 872,823.10 is: 1,309,234.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,819.90 : 1,330,229.85 = 872,823.10 : x
  2. Step 2: Convert to fraction form
    886,819.90/1,330,229.85 = 872,823.10/x
  3. Step 3: Cross multiply
    886,819.90x = 1,330,229.85 × 872,823.10
  4. Step 4: Simplify right side
    886,819.90x = 1,161,055,341,389.54
  5. Step 5: Solve for x
    x = 1,161,055,341,389.54/886,819.90
  6. Step 6: Final answer
    x = 1,309,234.65

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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.