Home / 1,397,728.33-1,928,843.75-785,881.66

Finding the Fourth Proportional to 1,397,728.33, 1,928,843.75 and 785,881.66

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Solution

The fourth proportional to 1,397,728.33, 1,928,843.75 and 785,881.66 is: 1,084,504.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,728.33 : 1,928,843.75 = 785,881.66 : x
  2. Step 2: Convert to fraction form
    1,397,728.33/1,928,843.75 = 785,881.66/x
  3. Step 3: Cross multiply
    1,397,728.33x = 1,928,843.75 × 785,881.66
  4. Step 4: Simplify right side
    1,397,728.33x = 1,515,842,928,130.63
  5. Step 5: Solve for x
    x = 1,515,842,928,130.63/1,397,728.33
  6. Step 6: Final answer
    x = 1,084,504.69

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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.