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Finding the Fourth Proportional to 639,592.09, 882,613.88 and 349,198.29

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Solution

The fourth proportional to 639,592.09, 882,613.88 and 349,198.29 is: 481,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,592.09 : 882,613.88 = 349,198.29 : x
  2. Step 2: Convert to fraction form
    639,592.09/882,613.88 = 349,198.29/x
  3. Step 3: Cross multiply
    639,592.09x = 882,613.88 × 349,198.29
  4. Step 4: Simplify right side
    639,592.09x = 308,207,257,626.27
  5. Step 5: Solve for x
    x = 308,207,257,626.27/639,592.09
  6. Step 6: Final answer
    x = 481,880.97

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1.5x scale

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.