Home / 1,917,569.36-2,877,453.06-780,121.64

Finding the Fourth Proportional to 1,917,569.36, 2,877,453.06 and 780,121.64

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Solution

The fourth proportional to 1,917,569.36, 2,877,453.06 and 780,121.64 is: 1,170,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,569.36 : 2,877,453.06 = 780,121.64 : x
  2. Step 2: Convert to fraction form
    1,917,569.36/2,877,453.06 = 780,121.64/x
  3. Step 3: Cross multiply
    1,917,569.36x = 2,877,453.06 × 780,121.64
  4. Step 4: Simplify right side
    1,917,569.36x = 2,244,763,400,190.22
  5. Step 5: Solve for x
    x = 2,244,763,400,190.22/1,917,569.36
  6. Step 6: Final answer
    x = 1,170,629.57

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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.