Home / 1,268,983.72-1,751,193.54-725,288.20

Finding the Fourth Proportional to 1,268,983.72, 1,751,193.54 and 725,288.20

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Solution

The fourth proportional to 1,268,983.72, 1,751,193.54 and 725,288.20 is: 1,000,895.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,983.72 : 1,751,193.54 = 725,288.20 : x
  2. Step 2: Convert to fraction form
    1,268,983.72/1,751,193.54 = 725,288.20/x
  3. Step 3: Cross multiply
    1,268,983.72x = 1,751,193.54 × 725,288.20
  4. Step 4: Simplify right side
    1,268,983.72x = 1,270,120,010,478.23
  5. Step 5: Solve for x
    x = 1,270,120,010,478.23/1,268,983.72
  6. Step 6: Final answer
    x = 1,000,895.43

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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.