Finding the Fourth Proportional to 414,185.22, 620,465.88 and 214,636.50
Calculator
Solution
The fourth proportional to 414,185.22, 620,465.88 and 214,636.50 is: 321,533.99
Step by Step Solution
- Step 1: Write the proportion equation
414,185.22 : 620,465.88 = 214,636.50 : x - Step 2: Convert to fraction form
414,185.22/620,465.88 = 214,636.50/x - Step 3: Cross multiply
414,185.22x = 620,465.88 × 214,636.50 - Step 4: Simplify right side
414,185.22x = 133,174,624,852.62 - Step 5: Solve for x
x = 133,174,624,852.62/414,185.22 - Step 6: Final answer
x = 321,533.99
Related Problems
Find fourth proportional to 207,092.61, 310,232.94 and 107,318.25
Half scale
Find fourth proportional to 828,370.44, 1,240,931.76 and 429,273
Double scale
Find fourth proportional to 414,186.22, 620,467.38 and 214,637.50
Similar ratio
Find fourth proportional to 621,277.83, 930,698.82 and 321,954.75
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.