Home / 1,989,982.80-2,984,974.04-494,074.80

Finding the Fourth Proportional to 1,989,982.80, 2,984,974.04 and 494,074.80

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Solution

The fourth proportional to 1,989,982.80, 2,984,974.04 and 494,074.80 is: 741,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,982.80 : 2,984,974.04 = 494,074.80 : x
  2. Step 2: Convert to fraction form
    1,989,982.80/2,984,974.04 = 494,074.80/x
  3. Step 3: Cross multiply
    1,989,982.80x = 2,984,974.04 × 494,074.80
  4. Step 4: Simplify right side
    1,989,982.80x = 1,474,800,451,818.19
  5. Step 5: Solve for x
    x = 1,474,800,451,818.19/1,989,982.80
  6. Step 6: Final answer
    x = 741,112.16

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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.