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Finding the Fourth Proportional to 479,522.92, 661,763.22 and 275,640.04

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Solution

The fourth proportional to 479,522.92, 661,763.22 and 275,640.04 is: 380,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,522.92 : 661,763.22 = 275,640.04 : x
  2. Step 2: Convert to fraction form
    479,522.92/661,763.22 = 275,640.04/x
  3. Step 3: Cross multiply
    479,522.92x = 661,763.22 × 275,640.04
  4. Step 4: Simplify right side
    479,522.92x = 182,408,440,431.33
  5. Step 5: Solve for x
    x = 182,408,440,431.33/479,522.92
  6. Step 6: Final answer
    x = 380,395.67

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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.