Home / 1,989,942.56-2,984,622.23-978,793.10

Finding the Fourth Proportional to 1,989,942.56, 2,984,622.23 and 978,793.10

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Solution

The fourth proportional to 1,989,942.56, 2,984,622.23 and 978,793.10 is: 1,468,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,942.56 : 2,984,622.23 = 978,793.10 : x
  2. Step 2: Convert to fraction form
    1,989,942.56/2,984,622.23 = 978,793.10/x
  3. Step 3: Cross multiply
    1,989,942.56x = 2,984,622.23 × 978,793.10
  4. Step 4: Simplify right side
    1,989,942.56x = 2,921,327,639,936.65
  5. Step 5: Solve for x
    x = 2,921,327,639,936.65/1,989,942.56
  6. Step 6: Final answer
    x = 1,468,046.21

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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.