Finding the Fourth Proportional to 944.97, 1,415.85 and 578.99
Calculator
Solution
The fourth proportional to 944.97, 1,415.85 and 578.99 is: 867.50
Step by Step Solution
- Step 1: Write the proportion equation
944.97 : 1,415.85 = 578.99 : x - Step 2: Convert to fraction form
944.97/1,415.85 = 578.99/x - Step 3: Cross multiply
944.97x = 1,415.85 × 578.99 - Step 4: Simplify right side
944.97x = 819,762.99 - Step 5: Solve for x
x = 819,762.99/944.97 - Step 6: Final answer
x = 867.50
Related Problems
Find fourth proportional to 472.49, 707.93 and 289.50
Half scale
Find fourth proportional to 1,889.94, 2,831.70 and 1,157.98
Double scale
Find fourth proportional to 945.97, 1,417.35 and 579.99
Similar ratio
Find fourth proportional to 1,417.46, 2,123.78 and 868.49
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.