Home / 1,271,887.28-1,755,302.10-728,193.61

Finding the Fourth Proportional to 1,271,887.28, 1,755,302.10 and 728,193.61

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Solution

The fourth proportional to 1,271,887.28, 1,755,302.10 and 728,193.61 is: 1,004,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,887.28 : 1,755,302.10 = 728,193.61 : x
  2. Step 2: Convert to fraction form
    1,271,887.28/1,755,302.10 = 728,193.61/x
  3. Step 3: Cross multiply
    1,271,887.28x = 1,755,302.10 × 728,193.61
  4. Step 4: Simplify right side
    1,271,887.28x = 1,278,199,769,198.61
  5. Step 5: Solve for x
    x = 1,278,199,769,198.61/1,271,887.28
  6. Step 6: Final answer
    x = 1,004,963.09

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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.