Home / 936,721.72-1,405,086.20-226,748.60

Finding the Fourth Proportional to 936,721.72, 1,405,086.20 and 226,748.60

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Solution

The fourth proportional to 936,721.72, 1,405,086.20 and 226,748.60 is: 340,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,721.72 : 1,405,086.20 = 226,748.60 : x
  2. Step 2: Convert to fraction form
    936,721.72/1,405,086.20 = 226,748.60/x
  3. Step 3: Cross multiply
    936,721.72x = 1,405,086.20 × 226,748.60
  4. Step 4: Simplify right side
    936,721.72x = 318,601,328,729.32
  5. Step 5: Solve for x
    x = 318,601,328,729.32/936,721.72
  6. Step 6: Final answer
    x = 340,123.78

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1.5x scale

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.