Finding the Fourth Proportional to 302,591.40, 453,887.10 and 279,781.80
Calculator
Solution
The fourth proportional to 302,591.40, 453,887.10 and 279,781.80 is: 419,672.70
Step by Step Solution
- Step 1: Write the proportion equation
302,591.40 : 453,887.10 = 279,781.80 : x - Step 2: Convert to fraction form
302,591.40/453,887.10 = 279,781.80/x - Step 3: Cross multiply
302,591.40x = 453,887.10 × 279,781.80 - Step 4: Simplify right side
302,591.40x = 126,989,349,834.78 - Step 5: Solve for x
x = 126,989,349,834.78/302,591.40 - Step 6: Final answer
x = 419,672.70
Related Problems
Find fourth proportional to 151,295.70, 226,943.55 and 139,890.90
Half scale
Find fourth proportional to 605,182.80, 907,774.20 and 559,563.60
Double scale
Find fourth proportional to 302,592.40, 453,888.60 and 279,782.80
Similar ratio
Find fourth proportional to 453,887.10, 680,830.65 and 419,672.70
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.