Finding the Fourth Proportional to 450,036.59, 620,757.87 and 288,635.99
Calculator
Solution
The fourth proportional to 450,036.59, 620,757.87 and 288,635.99 is: 398,129.99
Step by Step Solution
- Step 1: Write the proportion equation
450,036.59 : 620,757.87 = 288,635.99 : x - Step 2: Convert to fraction form
450,036.59/620,757.87 = 288,635.99/x - Step 3: Cross multiply
450,036.59x = 620,757.87 × 288,635.99 - Step 4: Simplify right side
450,036.59x = 179,173,059,253.95 - Step 5: Solve for x
x = 179,173,059,253.95/450,036.59 - Step 6: Final answer
x = 398,129.99
Related Problems
Find fourth proportional to 225,018.29, 310,378.94 and 144,317.99
Half scale
Find fourth proportional to 900,073.17, 1,241,515.74 and 577,271.97
Double scale
Find fourth proportional to 450,037.59, 620,759.25 and 288,636.99
Similar ratio
Find fourth proportional to 675,054.88, 931,136.81 and 432,953.98
1.5x scale
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.