Finding the Fourth Proportional to 623,515.97, 860,378.92 and 351,567.68
Calculator
Solution
The fourth proportional to 623,515.97, 860,378.92 and 351,567.68 is: 485,122.16
Step by Step Solution
- Step 1: Write the proportion equation
623,515.97 : 860,378.92 = 351,567.68 : x - Step 2: Convert to fraction form
623,515.97/860,378.92 = 351,567.68/x - Step 3: Cross multiply
623,515.97x = 860,378.92 × 351,567.68 - Step 4: Simplify right side
623,515.97x = 302,481,415,644.49 - Step 5: Solve for x
x = 302,481,415,644.49/623,515.97 - Step 6: Final answer
x = 485,122.16
Related Problems
Find fourth proportional to 311,757.99, 430,189.46 and 175,783.84
Half scale
Find fourth proportional to 1,247,031.95, 1,720,757.84 and 703,135.35
Double scale
Find fourth proportional to 623,516.97, 860,380.30 and 351,568.68
Similar ratio
Find fourth proportional to 935,273.96, 1,290,568.38 and 527,351.51
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.