Home / 1,913,899.39-2,874,125.23-1,278,287.63

Finding the Fourth Proportional to 1,913,899.39, 2,874,125.23 and 1,278,287.63

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Solution

The fourth proportional to 1,913,899.39, 2,874,125.23 and 1,278,287.63 is: 1,919,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,899.39 : 2,874,125.23 = 1,278,287.63 : x
  2. Step 2: Convert to fraction form
    1,913,899.39/2,874,125.23 = 1,278,287.63/x
  3. Step 3: Cross multiply
    1,913,899.39x = 2,874,125.23 × 1,278,287.63
  4. Step 4: Simplify right side
    1,913,899.39x = 3,673,958,721,791.53
  5. Step 5: Solve for x
    x = 3,673,958,721,791.53/1,913,899.39
  6. Step 6: Final answer
    x = 1,919,619.57

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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.