Finding the Fourth Proportional to 619,919.80, 929,104.80 and 264,518.80
Calculator
Solution
The fourth proportional to 619,919.80, 929,104.80 and 264,518.80 is: 396,447.55
Step by Step Solution
- Step 1: Write the proportion equation
619,919.80 : 929,104.80 = 264,518.80 : x - Step 2: Convert to fraction form
619,919.80/929,104.80 = 264,518.80/x - Step 3: Cross multiply
619,919.80x = 929,104.80 × 264,518.80 - Step 4: Simplify right side
619,919.80x = 245,765,686,770.24 - Step 5: Solve for x
x = 245,765,686,770.24/619,919.80 - Step 6: Final answer
x = 396,447.55
Related Problems
Find fourth proportional to 309,959.90, 464,552.40 and 132,259.40
Half scale
Find fourth proportional to 1,239,839.60, 1,858,209.60 and 529,037.60
Double scale
Find fourth proportional to 619,920.80, 929,106.30 and 264,519.80
Similar ratio
Find fourth proportional to 929,879.70, 1,393,657.20 and 396,778.20
1.5x scale
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.