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Finding the Fourth Proportional to 2,649,985.20, 3,974,977.80 and 967,744.80

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Solution

The fourth proportional to 2,649,985.20, 3,974,977.80 and 967,744.80 is: 1,451,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649,985.20 : 3,974,977.80 = 967,744.80 : x
  2. Step 2: Convert to fraction form
    2,649,985.20/3,974,977.80 = 967,744.80/x
  3. Step 3: Cross multiply
    2,649,985.20x = 3,974,977.80 × 967,744.80
  4. Step 4: Simplify right side
    2,649,985.20x = 3,846,764,096,065.44
  5. Step 5: Solve for x
    x = 3,846,764,096,065.44/2,649,985.20
  6. Step 6: Final answer
    x = 1,451,617.20

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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.