Finding the Fourth Proportional to 554,111.99, 764,657.21 and 312,391.08
Calculator
Solution
The fourth proportional to 554,111.99, 764,657.21 and 312,391.08 is: 431,089.92
Step by Step Solution
- Step 1: Write the proportion equation
554,111.99 : 764,657.21 = 312,391.08 : x - Step 2: Convert to fraction form
554,111.99/764,657.21 = 312,391.08/x - Step 3: Cross multiply
554,111.99x = 764,657.21 × 312,391.08 - Step 4: Simplify right side
554,111.99x = 238,872,092,442.67 - Step 5: Solve for x
x = 238,872,092,442.67/554,111.99 - Step 6: Final answer
x = 431,089.92
Related Problems
Find fourth proportional to 277,055.99, 382,328.61 and 156,195.54
Half scale
Find fourth proportional to 1,108,223.98, 1,529,314.43 and 624,782.16
Double scale
Find fourth proportional to 554,112.99, 764,658.59 and 312,392.08
Similar ratio
Find fourth proportional to 831,167.98, 1,146,985.82 and 468,586.62
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.