Home / 1,605,791.25-2,215,991.93-890,399.25

Finding the Fourth Proportional to 1,605,791.25, 2,215,991.93 and 890,399.25

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Solution

The fourth proportional to 1,605,791.25, 2,215,991.93 and 890,399.25 is: 1,228,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,791.25 : 2,215,991.93 = 890,399.25 : x
  2. Step 2: Convert to fraction form
    1,605,791.25/2,215,991.93 = 890,399.25/x
  3. Step 3: Cross multiply
    1,605,791.25x = 2,215,991.93 × 890,399.25
  4. Step 4: Simplify right side
    1,605,791.25x = 1,973,117,548,026.06
  5. Step 5: Solve for x
    x = 1,973,117,548,026.06/1,605,791.25
  6. Step 6: Final answer
    x = 1,228,750.97

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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.