Finding the Fourth Proportional to 922,969.67, 1,273,664.93 and 578,990.79
Calculator
Solution
The fourth proportional to 922,969.67, 1,273,664.93 and 578,990.79 is: 798,986.46
Step by Step Solution
- Step 1: Write the proportion equation
922,969.67 : 1,273,664.93 = 578,990.79 : x - Step 2: Convert to fraction form
922,969.67/1,273,664.93 = 578,990.79/x - Step 3: Cross multiply
922,969.67x = 1,273,664.93 × 578,990.79 - Step 4: Simplify right side
922,969.67x = 737,440,261,121.04 - Step 5: Solve for x
x = 737,440,261,121.04/922,969.67 - Step 6: Final answer
x = 798,986.46
Related Problems
Find fourth proportional to 461,484.83, 636,832.46 and 289,495.40
Half scale
Find fourth proportional to 1,845,939.33, 2,547,329.85 and 1,157,981.58
Double scale
Find fourth proportional to 922,970.67, 1,273,666.30 and 578,991.79
Similar ratio
Find fourth proportional to 1,384,454.50, 1,910,497.39 and 868,486.19
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.