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Finding the Fourth Proportional to 978,277.20, 1,467,415.80 and 673,846.80

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Solution

The fourth proportional to 978,277.20, 1,467,415.80 and 673,846.80 is: 1,010,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,277.20 : 1,467,415.80 = 673,846.80 : x
  2. Step 2: Convert to fraction form
    978,277.20/1,467,415.80 = 673,846.80/x
  3. Step 3: Cross multiply
    978,277.20x = 1,467,415.80 × 673,846.80
  4. Step 4: Simplify right side
    978,277.20x = 988,813,441,099.44
  5. Step 5: Solve for x
    x = 988,813,441,099.44/978,277.20
  6. Step 6: Final answer
    x = 1,010,770.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.