Home / 1,286,398.12-1,775,338.43-713,622.82

Finding the Fourth Proportional to 1,286,398.12, 1,775,338.43 and 713,622.82

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Solution

The fourth proportional to 1,286,398.12, 1,775,338.43 and 713,622.82 is: 984,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,398.12 : 1,775,338.43 = 713,622.82 : x
  2. Step 2: Convert to fraction form
    1,286,398.12/1,775,338.43 = 713,622.82/x
  3. Step 3: Cross multiply
    1,286,398.12x = 1,775,338.43 × 713,622.82
  4. Step 4: Simplify right side
    1,286,398.12x = 1,266,922,016,870.97
  5. Step 5: Solve for x
    x = 1,266,922,016,870.97/1,286,398.12
  6. Step 6: Final answer
    x = 984,859.97

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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.