Home / 1,321,180.35-1,981,049.33-397,801.62

Finding the Fourth Proportional to 1,321,180.35, 1,981,049.33 and 397,801.62

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Solution

The fourth proportional to 1,321,180.35, 1,981,049.33 and 397,801.62 is: 596,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,180.35 : 1,981,049.33 = 397,801.62 : x
  2. Step 2: Convert to fraction form
    1,321,180.35/1,981,049.33 = 397,801.62/x
  3. Step 3: Cross multiply
    1,321,180.35x = 1,981,049.33 × 397,801.62
  4. Step 4: Simplify right side
    1,321,180.35x = 788,064,632,773.92
  5. Step 5: Solve for x
    x = 788,064,632,773.92/1,321,180.35
  6. Step 6: Final answer
    x = 596,485.28

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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.