Home / 1,921,015.98-2,651,104.08-1,105,343.55

Finding the Fourth Proportional to 1,921,015.98, 2,651,104.08 and 1,105,343.55

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Solution

The fourth proportional to 1,921,015.98, 2,651,104.08 and 1,105,343.55 is: 1,525,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,015.98 : 2,651,104.08 = 1,105,343.55 : x
  2. Step 2: Convert to fraction form
    1,921,015.98/2,651,104.08 = 1,105,343.55/x
  3. Step 3: Cross multiply
    1,921,015.98x = 2,651,104.08 × 1,105,343.55
  4. Step 4: Simplify right side
    1,921,015.98x = 2,930,380,795,206.68
  5. Step 5: Solve for x
    x = 2,930,380,795,206.68/1,921,015.98
  6. Step 6: Final answer
    x = 1,525,432.81

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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.