Home / 3,980,434.80-5,969,485.80-1,421,353.20

Finding the Fourth Proportional to 3,980,434.80, 5,969,485.80 and 1,421,353.20

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Solution

The fourth proportional to 3,980,434.80, 5,969,485.80 and 1,421,353.20 is: 2,131,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,434.80 : 5,969,485.80 = 1,421,353.20 : x
  2. Step 2: Convert to fraction form
    3,980,434.80/5,969,485.80 = 1,421,353.20/x
  3. Step 3: Cross multiply
    3,980,434.80x = 5,969,485.80 × 1,421,353.20
  4. Step 4: Simplify right side
    3,980,434.80x = 8,484,747,744,184.56
  5. Step 5: Solve for x
    x = 8,484,747,744,184.56/3,980,434.80
  6. Step 6: Final answer
    x = 2,131,613.30

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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.