Home / 488,021.19-673,889.54-307,034.79

Finding the Fourth Proportional to 488,021.19, 673,889.54 and 307,034.79

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Solution

The fourth proportional to 488,021.19, 673,889.54 and 307,034.79 is: 423,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,021.19 : 673,889.54 = 307,034.79 : x
  2. Step 2: Convert to fraction form
    488,021.19/673,889.54 = 307,034.79/x
  3. Step 3: Cross multiply
    488,021.19x = 673,889.54 × 307,034.79
  4. Step 4: Simplify right side
    488,021.19x = 206,907,531,861.92
  5. Step 5: Solve for x
    x = 206,907,531,861.92/488,021.19
  6. Step 6: Final answer
    x = 423,972.43

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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.