Home / 1,998,349.38-2,757,653.91-1,139,186.43

Finding the Fourth Proportional to 1,998,349.38, 2,757,653.91 and 1,139,186.43

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Solution

The fourth proportional to 1,998,349.38, 2,757,653.91 and 1,139,186.43 is: 1,572,038.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,349.38 : 2,757,653.91 = 1,139,186.43 : x
  2. Step 2: Convert to fraction form
    1,998,349.38/2,757,653.91 = 1,139,186.43/x
  3. Step 3: Cross multiply
    1,998,349.38x = 2,757,653.91 × 1,139,186.43
  4. Step 4: Simplify right side
    1,998,349.38x = 3,141,481,912,908.44
  5. Step 5: Solve for x
    x = 3,141,481,912,908.44/1,998,349.38
  6. Step 6: Final answer
    x = 1,572,038.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.