Home / 1,805,286.15-2,491,314.57-989,471.97

Finding the Fourth Proportional to 1,805,286.15, 2,491,314.57 and 989,471.97

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Solution

The fourth proportional to 1,805,286.15, 2,491,314.57 and 989,471.97 is: 1,365,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,286.15 : 2,491,314.57 = 989,471.97 : x
  2. Step 2: Convert to fraction form
    1,805,286.15/2,491,314.57 = 989,471.97/x
  3. Step 3: Cross multiply
    1,805,286.15x = 2,491,314.57 × 989,471.97
  4. Step 4: Simplify right side
    1,805,286.15x = 2,465,085,935,467.60
  5. Step 5: Solve for x
    x = 2,465,085,935,467.60/1,805,286.15
  6. Step 6: Final answer
    x = 1,365,482.11

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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.