Home / 1,728,378.11-2,384,805.71-993,190.39

Finding the Fourth Proportional to 1,728,378.11, 2,384,805.71 and 993,190.39

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Solution

The fourth proportional to 1,728,378.11, 2,384,805.71 and 993,190.39 is: 1,370,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,378.11 : 2,384,805.71 = 993,190.39 : x
  2. Step 2: Convert to fraction form
    1,728,378.11/2,384,805.71 = 993,190.39/x
  3. Step 3: Cross multiply
    1,728,378.11x = 2,384,805.71 × 993,190.39
  4. Step 4: Simplify right side
    1,728,378.11x = 2,368,566,109,710.09
  5. Step 5: Solve for x
    x = 2,368,566,109,710.09/1,728,378.11
  6. Step 6: Final answer
    x = 1,370,398.12

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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.