Finding the Fourth Proportional to 908,637.12, 1,253,068.74 and 718,105.68
Calculator
Solution
The fourth proportional to 908,637.12, 1,253,068.74 and 718,105.68 is: 990,313.69
Step by Step Solution
- Step 1: Write the proportion equation
908,637.12 : 1,253,068.74 = 718,105.68 : x - Step 2: Convert to fraction form
908,637.12/1,253,068.74 = 718,105.68/x - Step 3: Cross multiply
908,637.12x = 1,253,068.74 × 718,105.68 - Step 4: Simplify right side
908,637.12x = 899,835,779,624.44 - Step 5: Solve for x
x = 899,835,779,624.44/908,637.12 - Step 6: Final answer
x = 990,313.69
Related Problems
Find fourth proportional to 454,318.56, 626,534.37 and 359,052.84
Half scale
Find fourth proportional to 1,817,274.24, 2,506,137.48 and 1,436,211.36
Double scale
Find fourth proportional to 908,638.12, 1,253,070.12 and 718,106.68
Similar ratio
Find fourth proportional to 1,362,955.68, 1,879,603.11 and 1,077,158.52
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.