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Finding the Fourth Proportional to 673,722, 929,738.16 and 371,916

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Solution

The fourth proportional to 673,722, 929,738.16 and 371,916 is: 513,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,722 : 929,738.16 = 371,916 : x
  2. Step 2: Convert to fraction form
    673,722/929,738.16 = 371,916/x
  3. Step 3: Cross multiply
    673,722x = 929,738.16 × 371,916
  4. Step 4: Simplify right side
    673,722x = 345,784,497,514.56
  5. Step 5: Solve for x
    x = 345,784,497,514.56/673,722
  6. Step 6: Final answer
    x = 513,245.07

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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.