Home / 1,290,100.80-1,933,538.40-659,265.60

Finding the Fourth Proportional to 1,290,100.80, 1,933,538.40 and 659,265.60

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Solution

The fourth proportional to 1,290,100.80, 1,933,538.40 and 659,265.60 is: 988,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,100.80 : 1,933,538.40 = 659,265.60 : x
  2. Step 2: Convert to fraction form
    1,290,100.80/1,933,538.40 = 659,265.60/x
  3. Step 3: Cross multiply
    1,290,100.80x = 1,933,538.40 × 659,265.60
  4. Step 4: Simplify right side
    1,290,100.80x = 1,274,715,353,399.04
  5. Step 5: Solve for x
    x = 1,274,715,353,399.04/1,290,100.80
  6. Step 6: Final answer
    x = 988,074.23

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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.