Home / 678,608.20-1,017,912.30-678,608.20

Finding the Fourth Proportional to 678,608.20, 1,017,912.30 and 678,608.20

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Solution

The fourth proportional to 678,608.20, 1,017,912.30 and 678,608.20 is: 1,017,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,608.20 : 1,017,912.30 = 678,608.20 : x
  2. Step 2: Convert to fraction form
    678,608.20/1,017,912.30 = 678,608.20/x
  3. Step 3: Cross multiply
    678,608.20x = 1,017,912.30 × 678,608.20
  4. Step 4: Simplify right side
    678,608.20x = 690,763,633,660.86
  5. Step 5: Solve for x
    x = 690,763,633,660.86/678,608.20
  6. Step 6: Final answer
    x = 1,017,912.30

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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.