Home / 1,389,601.20-2,082,846.60-790,849.20

Finding the Fourth Proportional to 1,389,601.20, 2,082,846.60 and 790,849.20

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Solution

The fourth proportional to 1,389,601.20, 2,082,846.60 and 790,849.20 is: 1,185,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,601.20 : 2,082,846.60 = 790,849.20 : x
  2. Step 2: Convert to fraction form
    1,389,601.20/2,082,846.60 = 790,849.20/x
  3. Step 3: Cross multiply
    1,389,601.20x = 2,082,846.60 × 790,849.20
  4. Step 4: Simplify right side
    1,389,601.20x = 1,647,217,567,332.72
  5. Step 5: Solve for x
    x = 1,647,217,567,332.72/1,389,601.20
  6. Step 6: Final answer
    x = 1,185,388.71

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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.