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Finding the Fourth Proportional to 608,379.26, 839,636.38 and 353,730.44

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Solution

The fourth proportional to 608,379.26, 839,636.38 and 353,730.44 is: 488,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,379.26 : 839,636.38 = 353,730.44 : x
  2. Step 2: Convert to fraction form
    608,379.26/839,636.38 = 353,730.44/x
  3. Step 3: Cross multiply
    608,379.26x = 839,636.38 × 353,730.44
  4. Step 4: Simplify right side
    608,379.26x = 297,004,948,678.66
  5. Step 5: Solve for x
    x = 297,004,948,678.66/608,379.26
  6. Step 6: Final answer
    x = 488,190.46

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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.