Home / 1,131,881.13-1,561,480.70-672,734.81

Finding the Fourth Proportional to 1,131,881.13, 1,561,480.70 and 672,734.81

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Solution

The fourth proportional to 1,131,881.13, 1,561,480.70 and 672,734.81 is: 928,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,881.13 : 1,561,480.70 = 672,734.81 : x
  2. Step 2: Convert to fraction form
    1,131,881.13/1,561,480.70 = 672,734.81/x
  3. Step 3: Cross multiply
    1,131,881.13x = 1,561,480.70 × 672,734.81
  4. Step 4: Simplify right side
    1,131,881.13x = 1,050,462,422,033.17
  5. Step 5: Solve for x
    x = 1,050,462,422,033.17/1,131,881.13
  6. Step 6: Final answer
    x = 928,067.79

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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.