Home / 3,469,975.90-4,788,716.40-1,921,237.58

Finding the Fourth Proportional to 3,469,975.90, 4,788,716.40 and 1,921,237.58

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Solution

The fourth proportional to 3,469,975.90, 4,788,716.40 and 1,921,237.58 is: 2,651,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469,975.90 : 4,788,716.40 = 1,921,237.58 : x
  2. Step 2: Convert to fraction form
    3,469,975.90/4,788,716.40 = 1,921,237.58/x
  3. Step 3: Cross multiply
    3,469,975.90x = 4,788,716.40 × 1,921,237.58
  4. Step 4: Simplify right side
    3,469,975.90x = 9,200,261,907,642.31
  5. Step 5: Solve for x
    x = 9,200,261,907,642.31/3,469,975.90
  6. Step 6: Final answer
    x = 2,651,390.72

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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.