Home / 1,988,049.40-2,982,462.90-789,767.80

Finding the Fourth Proportional to 1,988,049.40, 2,982,462.90 and 789,767.80

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Solution

The fourth proportional to 1,988,049.40, 2,982,462.90 and 789,767.80 is: 1,184,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,049.40 : 2,982,462.90 = 789,767.80 : x
  2. Step 2: Convert to fraction form
    1,988,049.40/2,982,462.90 = 789,767.80/x
  3. Step 3: Cross multiply
    1,988,049.40x = 2,982,462.90 × 789,767.80
  4. Step 4: Simplify right side
    1,988,049.40x = 2,355,453,163,114.62
  5. Step 5: Solve for x
    x = 2,355,453,163,114.62/1,988,049.40
  6. Step 6: Final answer
    x = 1,184,806.15

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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.