Home / 1,321,438.65-1,982,041.33-479,997.69

Finding the Fourth Proportional to 1,321,438.65, 1,982,041.33 and 479,997.69

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Solution

The fourth proportional to 1,321,438.65, 1,982,041.33 and 479,997.69 is: 719,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,438.65 : 1,982,041.33 = 479,997.69 : x
  2. Step 2: Convert to fraction form
    1,321,438.65/1,982,041.33 = 479,997.69/x
  3. Step 3: Cross multiply
    1,321,438.65x = 1,982,041.33 × 479,997.69
  4. Step 4: Simplify right side
    1,321,438.65x = 951,375,259,884.53
  5. Step 5: Solve for x
    x = 951,375,259,884.53/1,321,438.65
  6. Step 6: Final answer
    x = 719,954.17

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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.