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Finding the Fourth Proportional to 488,481.35, 674,433.24 and 304,999.34

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Solution

The fourth proportional to 488,481.35, 674,433.24 and 304,999.34 is: 421,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,481.35 : 674,433.24 = 304,999.34 : x
  2. Step 2: Convert to fraction form
    488,481.35/674,433.24 = 304,999.34/x
  3. Step 3: Cross multiply
    488,481.35x = 674,433.24 × 304,999.34
  4. Step 4: Simplify right side
    488,481.35x = 205,701,693,074.06
  5. Step 5: Solve for x
    x = 205,701,693,074.06/488,481.35
  6. Step 6: Final answer
    x = 421,104.50

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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.