Finding the Fourth Proportional to 889,523.20, 1,334,272.84 and 215,610.28
Calculator
Solution
The fourth proportional to 889,523.20, 1,334,272.84 and 215,610.28 is: 323,412.52
Step by Step Solution
- Step 1: Write the proportion equation
889,523.20 : 1,334,272.84 = 215,610.28 : x - Step 2: Convert to fraction form
889,523.20/1,334,272.84 = 215,610.28/x - Step 3: Cross multiply
889,523.20x = 1,334,272.84 × 215,610.28 - Step 4: Simplify right side
889,523.20x = 287,682,940,628.80 - Step 5: Solve for x
x = 287,682,940,628.80/889,523.20 - Step 6: Final answer
x = 323,412.52
Related Problems
Find fourth proportional to 444,761.60, 667,136.42 and 107,805.14
Half scale
Find fourth proportional to 1,779,046.40, 2,668,545.68 and 431,220.56
Double scale
Find fourth proportional to 889,524.20, 1,334,274.34 and 215,611.28
Similar ratio
Find fourth proportional to 1,334,284.80, 2,001,409.26 and 323,415.42
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.