Home / 3,105,850.80-4,657,200.84-1,421,511.60

Finding the Fourth Proportional to 3,105,850.80, 4,657,200.84 and 1,421,511.60

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Solution

The fourth proportional to 3,105,850.80, 4,657,200.84 and 1,421,511.60 is: 2,131,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,850.80 : 4,657,200.84 = 1,421,511.60 : x
  2. Step 2: Convert to fraction form
    3,105,850.80/4,657,200.84 = 1,421,511.60/x
  3. Step 3: Cross multiply
    3,105,850.80x = 4,657,200.84 × 1,421,511.60
  4. Step 4: Simplify right side
    3,105,850.80x = 6,620,265,017,589.74
  5. Step 5: Solve for x
    x = 6,620,265,017,589.74/3,105,850.80
  6. Step 6: Final answer
    x = 2,131,546.38

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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.