Home / 986,297.06-1,361,078.46-578,314.64

Finding the Fourth Proportional to 986,297.06, 1,361,078.46 and 578,314.64

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Solution

The fourth proportional to 986,297.06, 1,361,078.46 and 578,314.64 is: 798,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,297.06 : 1,361,078.46 = 578,314.64 : x
  2. Step 2: Convert to fraction form
    986,297.06/1,361,078.46 = 578,314.64/x
  3. Step 3: Cross multiply
    986,297.06x = 1,361,078.46 × 578,314.64
  4. Step 4: Simplify right side
    986,297.06x = 787,131,599,606.65
  5. Step 5: Solve for x
    x = 787,131,599,606.65/986,297.06
  6. Step 6: Final answer
    x = 798,067.47

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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.