Home / 3,313,172.40-4,969,758.60-1,420,105.20

Finding the Fourth Proportional to 3,313,172.40, 4,969,758.60 and 1,420,105.20

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Solution

The fourth proportional to 3,313,172.40, 4,969,758.60 and 1,420,105.20 is: 2,130,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313,172.40 : 4,969,758.60 = 1,420,105.20 : x
  2. Step 2: Convert to fraction form
    3,313,172.40/4,969,758.60 = 1,420,105.20/x
  3. Step 3: Cross multiply
    3,313,172.40x = 4,969,758.60 × 1,420,105.20
  4. Step 4: Simplify right side
    3,313,172.40x = 7,057,580,030,604.72
  5. Step 5: Solve for x
    x = 7,057,580,030,604.72/3,313,172.40
  6. Step 6: Final answer
    x = 2,130,157.80

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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.