Finding the Fourth Proportional to 648,272.20, 972,408.30 and 559,625.80
Calculator
Solution
The fourth proportional to 648,272.20, 972,408.30 and 559,625.80 is: 839,438.70
Step by Step Solution
- Step 1: Write the proportion equation
648,272.20 : 972,408.30 = 559,625.80 : x - Step 2: Convert to fraction form
648,272.20/972,408.30 = 559,625.80/x - Step 3: Cross multiply
648,272.20x = 972,408.30 × 559,625.80 - Step 4: Simplify right side
648,272.20x = 544,184,772,814.14 - Step 5: Solve for x
x = 544,184,772,814.14/648,272.20 - Step 6: Final answer
x = 839,438.70
Related Problems
Find fourth proportional to 324,136.10, 486,204.15 and 279,812.90
Half scale
Find fourth proportional to 1,296,544.40, 1,944,816.60 and 1,119,251.60
Double scale
Find fourth proportional to 648,273.20, 972,409.80 and 559,626.80
Similar ratio
Find fourth proportional to 972,408.30, 1,458,612.45 and 839,438.70
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.