Home / 853,286.20-1,279,583.70-292,031.80

Finding the Fourth Proportional to 853,286.20, 1,279,583.70 and 292,031.80

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Solution

The fourth proportional to 853,286.20, 1,279,583.70 and 292,031.80 is: 437,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,286.20 : 1,279,583.70 = 292,031.80 : x
  2. Step 2: Convert to fraction form
    853,286.20/1,279,583.70 = 292,031.80/x
  3. Step 3: Cross multiply
    853,286.20x = 1,279,583.70 × 292,031.80
  4. Step 4: Simplify right side
    853,286.20x = 373,679,131,161.66
  5. Step 5: Solve for x
    x = 373,679,131,161.66/853,286.20
  6. Step 6: Final answer
    x = 437,929.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.