Home / 1,222,183.83-1,686,588.31-678,288.03

Finding the Fourth Proportional to 1,222,183.83, 1,686,588.31 and 678,288.03

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Solution

The fourth proportional to 1,222,183.83, 1,686,588.31 and 678,288.03 is: 936,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,183.83 : 1,686,588.31 = 678,288.03 : x
  2. Step 2: Convert to fraction form
    1,222,183.83/1,686,588.31 = 678,288.03/x
  3. Step 3: Cross multiply
    1,222,183.83x = 1,686,588.31 × 678,288.03
  4. Step 4: Simplify right side
    1,222,183.83x = 1,143,992,662,210.93
  5. Step 5: Solve for x
    x = 1,143,992,662,210.93/1,222,183.83
  6. Step 6: Final answer
    x = 936,023.40

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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.