Home / 1,109,768.80-1,664,653.20-479,912.80

Finding the Fourth Proportional to 1,109,768.80, 1,664,653.20 and 479,912.80

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Solution

The fourth proportional to 1,109,768.80, 1,664,653.20 and 479,912.80 is: 719,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,768.80 : 1,664,653.20 = 479,912.80 : x
  2. Step 2: Convert to fraction form
    1,109,768.80/1,664,653.20 = 479,912.80/x
  3. Step 3: Cross multiply
    1,109,768.80x = 1,664,653.20 × 479,912.80
  4. Step 4: Simplify right side
    1,109,768.80x = 798,888,378,240.96
  5. Step 5: Solve for x
    x = 798,888,378,240.96/1,109,768.80
  6. Step 6: Final answer
    x = 719,869.20

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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.