Finding the Fourth Proportional to 740,490.68, 1,109,988.24 and 291,526.68
Calculator
Solution
The fourth proportional to 740,490.68, 1,109,988.24 and 291,526.68 is: 436,995.62
Step by Step Solution
- Step 1: Write the proportion equation
740,490.68 : 1,109,988.24 = 291,526.68 : x - Step 2: Convert to fraction form
740,490.68/1,109,988.24 = 291,526.68/x - Step 3: Cross multiply
740,490.68x = 1,109,988.24 × 291,526.68 - Step 4: Simplify right side
740,490.68x = 323,591,186,446.24 - Step 5: Solve for x
x = 323,591,186,446.24/740,490.68 - Step 6: Final answer
x = 436,995.62
Related Problems
Find fourth proportional to 370,245.34, 554,994.12 and 145,763.34
Half scale
Find fourth proportional to 1,480,981.36, 2,219,976.48 and 583,053.36
Double scale
Find fourth proportional to 740,491.68, 1,109,989.74 and 291,527.68
Similar ratio
Find fourth proportional to 1,110,736.02, 1,664,982.36 and 437,290.02
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.