Home / 1,644,138.16-2,268,958.45-899,107.81

Finding the Fourth Proportional to 1,644,138.16, 2,268,958.45 and 899,107.81

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Solution

The fourth proportional to 1,644,138.16, 2,268,958.45 and 899,107.81 is: 1,240,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644,138.16 : 2,268,958.45 = 899,107.81 : x
  2. Step 2: Convert to fraction form
    1,644,138.16/2,268,958.45 = 899,107.81/x
  3. Step 3: Cross multiply
    1,644,138.16x = 2,268,958.45 × 899,107.81
  4. Step 4: Simplify right side
    1,644,138.16x = 2,040,038,262,960.50
  5. Step 5: Solve for x
    x = 2,040,038,262,960.50/1,644,138.16
  6. Step 6: Final answer
    x = 1,240,794.91

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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.