Home / 863,890.92-1,296,230.22-443,462.28

Finding the Fourth Proportional to 863,890.92, 1,296,230.22 and 443,462.28

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Solution

The fourth proportional to 863,890.92, 1,296,230.22 and 443,462.28 is: 665,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,890.92 : 1,296,230.22 = 443,462.28 : x
  2. Step 2: Convert to fraction form
    863,890.92/1,296,230.22 = 443,462.28/x
  3. Step 3: Cross multiply
    863,890.92x = 1,296,230.22 × 443,462.28
  4. Step 4: Simplify right side
    863,890.92x = 574,829,208,766.10
  5. Step 5: Solve for x
    x = 574,829,208,766.10/863,890.92
  6. Step 6: Final answer
    x = 665,395.59

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Double scale
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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.