Home / 1,505,869.19-2,078,093.44-861,288.47

Finding the Fourth Proportional to 1,505,869.19, 2,078,093.44 and 861,288.47

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Solution

The fourth proportional to 1,505,869.19, 2,078,093.44 and 861,288.47 is: 1,188,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,869.19 : 2,078,093.44 = 861,288.47 : x
  2. Step 2: Convert to fraction form
    1,505,869.19/2,078,093.44 = 861,288.47/x
  3. Step 3: Cross multiply
    1,505,869.19x = 2,078,093.44 × 861,288.47
  4. Step 4: Simplify right side
    1,505,869.19x = 1,789,837,919,454.64
  5. Step 5: Solve for x
    x = 1,789,837,919,454.64/1,505,869.19
  6. Step 6: Final answer
    x = 1,188,574.63

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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.