Home / 1,239,453.09-1,855,315.94-954,403.16

Finding the Fourth Proportional to 1,239,453.09, 1,855,315.94 and 954,403.16

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Solution

The fourth proportional to 1,239,453.09, 1,855,315.94 and 954,403.16 is: 1,428,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,453.09 : 1,855,315.94 = 954,403.16 : x
  2. Step 2: Convert to fraction form
    1,239,453.09/1,855,315.94 = 954,403.16/x
  3. Step 3: Cross multiply
    1,239,453.09x = 1,855,315.94 × 954,403.16
  4. Step 4: Simplify right side
    1,239,453.09x = 1,770,719,381,885.78
  5. Step 5: Solve for x
    x = 1,770,719,381,885.78/1,239,453.09
  6. Step 6: Final answer
    x = 1,428,629.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.