Home / 1,218,679.05-1,684,987.43-1,067,342.25

Finding the Fourth Proportional to 1,218,679.05, 1,684,987.43 and 1,067,342.25

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Solution

The fourth proportional to 1,218,679.05, 1,684,987.43 and 1,067,342.25 is: 1,475,743.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,679.05 : 1,684,987.43 = 1,067,342.25 : x
  2. Step 2: Convert to fraction form
    1,218,679.05/1,684,987.43 = 1,067,342.25/x
  3. Step 3: Cross multiply
    1,218,679.05x = 1,684,987.43 × 1,067,342.25
  4. Step 4: Simplify right side
    1,218,679.05x = 1,798,458,269,421.21
  5. Step 5: Solve for x
    x = 1,798,458,269,421.21/1,218,679.05
  6. Step 6: Final answer
    x = 1,475,743.98

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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.