Finding the Fourth Proportional to 563,440.05, 777,542.81 and 308,790.63
Calculator
Solution
The fourth proportional to 563,440.05, 777,542.81 and 308,790.63 is: 426,128.62
Step by Step Solution
- Step 1: Write the proportion equation
563,440.05 : 777,542.81 = 308,790.63 : x - Step 2: Convert to fraction form
563,440.05/777,542.81 = 308,790.63/x - Step 3: Cross multiply
563,440.05x = 777,542.81 × 308,790.63 - Step 4: Simplify right side
563,440.05x = 240,097,932,607.92 - Step 5: Solve for x
x = 240,097,932,607.92/563,440.05 - Step 6: Final answer
x = 426,128.62
Related Problems
Find fourth proportional to 281,720.03, 388,771.40 and 154,395.32
Half scale
Find fourth proportional to 1,126,880.10, 1,555,085.61 and 617,581.26
Double scale
Find fourth proportional to 563,441.05, 777,544.18 and 308,791.63
Similar ratio
Find fourth proportional to 845,160.08, 1,166,314.21 and 463,185.95
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.