Home / 1,261,051.22-1,740,197.97-717,111.51

Finding the Fourth Proportional to 1,261,051.22, 1,740,197.97 and 717,111.51

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Solution

The fourth proportional to 1,261,051.22, 1,740,197.97 and 717,111.51 is: 989,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,051.22 : 1,740,197.97 = 717,111.51 : x
  2. Step 2: Convert to fraction form
    1,261,051.22/1,740,197.97 = 717,111.51/x
  3. Step 3: Cross multiply
    1,261,051.22x = 1,740,197.97 × 717,111.51
  4. Step 4: Simplify right side
    1,261,051.22x = 1,247,915,993,965.63
  5. Step 5: Solve for x
    x = 1,247,915,993,965.63/1,261,051.22
  6. Step 6: Final answer
    x = 989,583.91

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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.