Home / 431,581.44-647,558.70-231,668.34

Finding the Fourth Proportional to 431,581.44, 647,558.70 and 231,668.34

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Solution

The fourth proportional to 431,581.44, 647,558.70 and 231,668.34 is: 347,602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,581.44 : 647,558.70 = 231,668.34 : x
  2. Step 2: Convert to fraction form
    431,581.44/647,558.70 = 231,668.34/x
  3. Step 3: Cross multiply
    431,581.44x = 647,558.70 × 231,668.34
  4. Step 4: Simplify right side
    431,581.44x = 150,018,849,081.56
  5. Step 5: Solve for x
    x = 150,018,849,081.56/431,581.44
  6. Step 6: Final answer
    x = 347,602.64

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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.