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Finding the Fourth Proportional to 625,738.92, 863,536.71 and 353,847.49

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Solution

The fourth proportional to 625,738.92, 863,536.71 and 353,847.49 is: 488,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,738.92 : 863,536.71 = 353,847.49 : x
  2. Step 2: Convert to fraction form
    625,738.92/863,536.71 = 353,847.49/x
  3. Step 3: Cross multiply
    625,738.92x = 863,536.71 × 353,847.49
  4. Step 4: Simplify right side
    625,738.92x = 305,560,297,356.36
  5. Step 5: Solve for x
    x = 305,560,297,356.36/625,738.92
  6. Step 6: Final answer
    x = 488,319.15

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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.