Home / 1,287,131.80-1,776,249.66-714,183.16

Finding the Fourth Proportional to 1,287,131.80, 1,776,249.66 and 714,183.16

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Solution

The fourth proportional to 1,287,131.80, 1,776,249.66 and 714,183.16 is: 985,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,131.80 : 1,776,249.66 = 714,183.16 : x
  2. Step 2: Convert to fraction form
    1,287,131.80/1,776,249.66 = 714,183.16/x
  3. Step 3: Cross multiply
    1,287,131.80x = 1,776,249.66 × 714,183.16
  4. Step 4: Simplify right side
    1,287,131.80x = 1,268,567,595,127.73
  5. Step 5: Solve for x
    x = 1,268,567,595,127.73/1,287,131.80
  6. Step 6: Final answer
    x = 985,577.08

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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.