Home / 1,215,197.40-1,821,338.10-504,859.80

Finding the Fourth Proportional to 1,215,197.40, 1,821,338.10 and 504,859.80

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Solution

The fourth proportional to 1,215,197.40, 1,821,338.10 and 504,859.80 is: 756,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,197.40 : 1,821,338.10 = 504,859.80 : x
  2. Step 2: Convert to fraction form
    1,215,197.40/1,821,338.10 = 504,859.80/x
  3. Step 3: Cross multiply
    1,215,197.40x = 1,821,338.10 × 504,859.80
  4. Step 4: Simplify right side
    1,215,197.40x = 919,520,388,898.38
  5. Step 5: Solve for x
    x = 919,520,388,898.38/1,215,197.40
  6. Step 6: Final answer
    x = 756,683.97

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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.