Home / 1,268,929.30-1,902,633.60-403,990.42

Finding the Fourth Proportional to 1,268,929.30, 1,902,633.60 and 403,990.42

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Solution

The fourth proportional to 1,268,929.30, 1,902,633.60 and 403,990.42 is: 605,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,929.30 : 1,902,633.60 = 403,990.42 : x
  2. Step 2: Convert to fraction form
    1,268,929.30/1,902,633.60 = 403,990.42/x
  3. Step 3: Cross multiply
    1,268,929.30x = 1,902,633.60 × 403,990.42
  4. Step 4: Simplify right side
    1,268,929.30x = 768,645,747,170.11
  5. Step 5: Solve for x
    x = 768,645,747,170.11/1,268,929.30
  6. Step 6: Final answer
    x = 605,743.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.