Finding the Fourth Proportional to 494,688.16, 742,132.40 and 210,378.08
Calculator
Solution
The fourth proportional to 494,688.16, 742,132.40 and 210,378.08 is: 315,609.72
Step by Step Solution
- Step 1: Write the proportion equation
494,688.16 : 742,132.40 = 210,378.08 : x - Step 2: Convert to fraction form
494,688.16/742,132.40 = 210,378.08/x - Step 3: Cross multiply
494,688.16x = 742,132.40 × 210,378.08 - Step 4: Simplify right side
494,688.16x = 156,128,389,417.79 - Step 5: Solve for x
x = 156,128,389,417.79/494,688.16 - Step 6: Final answer
x = 315,609.72
Related Problems
Find fourth proportional to 247,344.08, 371,066.20 and 105,189.04
Half scale
Find fourth proportional to 989,376.32, 1,484,264.80 and 420,756.16
Double scale
Find fourth proportional to 494,689.16, 742,133.90 and 210,379.08
Similar ratio
Find fourth proportional to 742,032.24, 1,113,198.60 and 315,567.12
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.