Home / 1,330,362.40-1,995,835.20-431,651.20

Finding the Fourth Proportional to 1,330,362.40, 1,995,835.20 and 431,651.20

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Solution

The fourth proportional to 1,330,362.40, 1,995,835.20 and 431,651.20 is: 647,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,362.40 : 1,995,835.20 = 431,651.20 : x
  2. Step 2: Convert to fraction form
    1,330,362.40/1,995,835.20 = 431,651.20/x
  3. Step 3: Cross multiply
    1,330,362.40x = 1,995,835.20 × 431,651.20
  4. Step 4: Simplify right side
    1,330,362.40x = 861,504,659,082.24
  5. Step 5: Solve for x
    x = 861,504,659,082.24/1,330,362.40
  6. Step 6: Final answer
    x = 647,571.41

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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.