Finding the Fourth Proportional to 614,331.40, 921,497.10 and 259,745.80
Calculator
Solution
The fourth proportional to 614,331.40, 921,497.10 and 259,745.80 is: 389,618.70
Step by Step Solution
- Step 1: Write the proportion equation
614,331.40 : 921,497.10 = 259,745.80 : x - Step 2: Convert to fraction form
614,331.40/921,497.10 = 259,745.80/x - Step 3: Cross multiply
614,331.40x = 921,497.10 × 259,745.80 - Step 4: Simplify right side
614,331.40x = 239,355,001,437.18 - Step 5: Solve for x
x = 239,355,001,437.18/614,331.40 - Step 6: Final answer
x = 389,618.70
Related Problems
Find fourth proportional to 307,165.70, 460,748.55 and 129,872.90
Half scale
Find fourth proportional to 1,228,662.80, 1,842,994.20 and 519,491.60
Double scale
Find fourth proportional to 614,332.40, 921,498.60 and 259,746.80
Similar ratio
Find fourth proportional to 921,497.10, 1,382,245.65 and 389,618.70
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.