Home / 3,938,393.21-5,907,590.82-1,242,929.37

Finding the Fourth Proportional to 3,938,393.21, 5,907,590.82 and 1,242,929.37

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Solution

The fourth proportional to 3,938,393.21, 5,907,590.82 and 1,242,929.37 is: 1,864,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,393.21 : 5,907,590.82 = 1,242,929.37 : x
  2. Step 2: Convert to fraction form
    3,938,393.21/5,907,590.82 = 1,242,929.37/x
  3. Step 3: Cross multiply
    3,938,393.21x = 5,907,590.82 × 1,242,929.37
  4. Step 4: Simplify right side
    3,938,393.21x = 7,342,718,158,273.85
  5. Step 5: Solve for x
    x = 7,342,718,158,273.85/3,938,393.21
  6. Step 6: Final answer
    x = 1,864,394.38

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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.