Home / 860,129.30-1,192,495.39-812,299.61

Finding the Fourth Proportional to 860,129.30, 1,192,495.39 and 812,299.61

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Solution

The fourth proportional to 860,129.30, 1,192,495.39 and 812,299.61 is: 1,126,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,129.30 : 1,192,495.39 = 812,299.61 : x
  2. Step 2: Convert to fraction form
    860,129.30/1,192,495.39 = 812,299.61/x
  3. Step 3: Cross multiply
    860,129.30x = 1,192,495.39 × 812,299.61
  4. Step 4: Simplify right side
    860,129.30x = 968,663,541,174.29
  5. Step 5: Solve for x
    x = 968,663,541,174.29/860,129.30
  6. Step 6: Final answer
    x = 1,126,183.63

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.