Home / 1,918,578.91-2,647,647.35-1,059,146.23

Finding the Fourth Proportional to 1,918,578.91, 2,647,647.35 and 1,059,146.23

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Solution

The fourth proportional to 1,918,578.91, 2,647,647.35 and 1,059,146.23 is: 1,461,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,578.91 : 2,647,647.35 = 1,059,146.23 : x
  2. Step 2: Convert to fraction form
    1,918,578.91/2,647,647.35 = 1,059,146.23/x
  3. Step 3: Cross multiply
    1,918,578.91x = 2,647,647.35 × 1,059,146.23
  4. Step 4: Simplify right side
    1,918,578.91x = 2,804,245,709,121.99
  5. Step 5: Solve for x
    x = 2,804,245,709,121.99/1,918,578.91
  6. Step 6: Final answer
    x = 1,461,626.46

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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.