Home / 1,456,198.36-2,009,622.51-811,623.16

Finding the Fourth Proportional to 1,456,198.36, 2,009,622.51 and 811,623.16

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Solution

The fourth proportional to 1,456,198.36, 2,009,622.51 and 811,623.16 is: 1,120,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,198.36 : 2,009,622.51 = 811,623.16 : x
  2. Step 2: Convert to fraction form
    1,456,198.36/2,009,622.51 = 811,623.16/x
  3. Step 3: Cross multiply
    1,456,198.36x = 2,009,622.51 × 811,623.16
  4. Step 4: Simplify right side
    1,456,198.36x = 1,631,056,171,973.33
  5. Step 5: Solve for x
    x = 1,631,056,171,973.33/1,456,198.36
  6. Step 6: Final answer
    x = 1,120,078.29

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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.