Home / 1,271,936.79-1,755,190.22-728,076.87

Finding the Fourth Proportional to 1,271,936.79, 1,755,190.22 and 728,076.87

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Solution

The fourth proportional to 1,271,936.79, 1,755,190.22 and 728,076.87 is: 1,004,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,936.79 : 1,755,190.22 = 728,076.87 : x
  2. Step 2: Convert to fraction form
    1,271,936.79/1,755,190.22 = 728,076.87/x
  3. Step 3: Cross multiply
    1,271,936.79x = 1,755,190.22 × 728,076.87
  4. Step 4: Simplify right side
    1,271,936.79x = 1,277,913,397,991.83
  5. Step 5: Solve for x
    x = 1,277,913,397,991.83/1,271,936.79
  6. Step 6: Final answer
    x = 1,004,698.82

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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.