Home / 1,394,169.51-1,922,869.23-1,008,431.92

Finding the Fourth Proportional to 1,394,169.51, 1,922,869.23 and 1,008,431.92

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Solution

The fourth proportional to 1,394,169.51, 1,922,869.23 and 1,008,431.92 is: 1,390,851.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,169.51 : 1,922,869.23 = 1,008,431.92 : x
  2. Step 2: Convert to fraction form
    1,394,169.51/1,922,869.23 = 1,008,431.92/x
  3. Step 3: Cross multiply
    1,394,169.51x = 1,922,869.23 × 1,008,431.92
  4. Step 4: Simplify right side
    1,394,169.51x = 1,939,082,709,517.82
  5. Step 5: Solve for x
    x = 1,939,082,709,517.82/1,394,169.51
  6. Step 6: Final answer
    x = 1,390,851.47

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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.