Finding the Fourth Proportional to 980,365.68, 1,470,596.76 and 270,378
Calculator
Solution
The fourth proportional to 980,365.68, 1,470,596.76 and 270,378 is: 405,580.30
Step by Step Solution
- Step 1: Write the proportion equation
980,365.68 : 1,470,596.76 = 270,378 : x - Step 2: Convert to fraction form
980,365.68/1,470,596.76 = 270,378/x - Step 3: Cross multiply
980,365.68x = 1,470,596.76 × 270,378 - Step 4: Simplify right side
980,365.68x = 397,617,010,775.28 - Step 5: Solve for x
x = 397,617,010,775.28/980,365.68 - Step 6: Final answer
x = 405,580.30
Related Problems
Find fourth proportional to 490,182.84, 735,298.38 and 135,189
Half scale
Find fourth proportional to 1,960,731.36, 2,941,193.52 and 540,756
Double scale
Find fourth proportional to 980,366.68, 1,470,598.26 and 270,379
Similar ratio
Find fourth proportional to 1,470,548.52, 2,205,895.14 and 405,567
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.