Home / 3,138,186.24-4,707,978.72-1,143,642.24

Finding the Fourth Proportional to 3,138,186.24, 4,707,978.72 and 1,143,642.24

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Solution

The fourth proportional to 3,138,186.24, 4,707,978.72 and 1,143,642.24 is: 1,715,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,186.24 : 4,707,978.72 = 1,143,642.24 : x
  2. Step 2: Convert to fraction form
    3,138,186.24/4,707,978.72 = 1,143,642.24/x
  3. Step 3: Cross multiply
    3,138,186.24x = 4,707,978.72 × 1,143,642.24
  4. Step 4: Simplify right side
    3,138,186.24x = 5,384,243,329,213.13
  5. Step 5: Solve for x
    x = 5,384,243,329,213.13/3,138,186.24
  6. Step 6: Final answer
    x = 1,715,718.23

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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.