Home / 379,619.44-523,954.92-315,895.12

Finding the Fourth Proportional to 379,619.44, 523,954.92 and 315,895.12

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Solution

The fourth proportional to 379,619.44, 523,954.92 and 315,895.12 is: 436,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,619.44 : 523,954.92 = 315,895.12 : x
  2. Step 2: Convert to fraction form
    379,619.44/523,954.92 = 315,895.12/x
  3. Step 3: Cross multiply
    379,619.44x = 523,954.92 × 315,895.12
  4. Step 4: Simplify right side
    379,619.44x = 165,514,802,327.99
  5. Step 5: Solve for x
    x = 165,514,802,327.99/379,619.44
  6. Step 6: Final answer
    x = 436,001.91

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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.