Home / 3,619,412.40-5,431,086.90-1,489,711.80

Finding the Fourth Proportional to 3,619,412.40, 5,431,086.90 and 1,489,711.80

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Solution

The fourth proportional to 3,619,412.40, 5,431,086.90 and 1,489,711.80 is: 2,235,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,412.40 : 5,431,086.90 = 1,489,711.80 : x
  2. Step 2: Convert to fraction form
    3,619,412.40/5,431,086.90 = 1,489,711.80/x
  3. Step 3: Cross multiply
    3,619,412.40x = 5,431,086.90 × 1,489,711.80
  4. Step 4: Simplify right side
    3,619,412.40x = 8,090,754,241,755.42
  5. Step 5: Solve for x
    x = 8,090,754,241,755.42/3,619,412.40
  6. Step 6: Final answer
    x = 2,235,377.83

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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.