Finding the Fourth Proportional to 902,320.57, 1,245,202.68 and 494,419.09
Calculator
Solution
The fourth proportional to 902,320.57, 1,245,202.68 and 494,419.09 is: 682,298.50
Step by Step Solution
- Step 1: Write the proportion equation
902,320.57 : 1,245,202.68 = 494,419.09 : x - Step 2: Convert to fraction form
902,320.57/1,245,202.68 = 494,419.09/x - Step 3: Cross multiply
902,320.57x = 1,245,202.68 × 494,419.09 - Step 4: Simplify right side
902,320.57x = 615,651,975,911.16 - Step 5: Solve for x
x = 615,651,975,911.16/902,320.57 - Step 6: Final answer
x = 682,298.50
Related Problems
Find fourth proportional to 451,160.29, 622,601.34 and 247,209.55
Half scale
Find fourth proportional to 1,804,641.14, 2,490,405.36 and 988,838.18
Double scale
Find fourth proportional to 902,321.57, 1,245,204.06 and 494,420.09
Similar ratio
Find fourth proportional to 1,353,480.86, 1,867,804.02 and 741,628.64
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.