Finding the Fourth Proportional to 578,816.96, 867,175.68 and 427,389.08
Calculator
Solution
The fourth proportional to 578,816.96, 867,175.68 and 427,389.08 is: 640,308.49
Step by Step Solution
- Step 1: Write the proportion equation
578,816.96 : 867,175.68 = 427,389.08 : x - Step 2: Convert to fraction form
578,816.96/867,175.68 = 427,389.08/x - Step 3: Cross multiply
578,816.96x = 867,175.68 × 427,389.08 - Step 4: Simplify right side
578,816.96x = 370,621,416,073.57 - Step 5: Solve for x
x = 370,621,416,073.57/578,816.96 - Step 6: Final answer
x = 640,308.49
Related Problems
Find fourth proportional to 289,408.48, 433,587.84 and 213,694.54
Half scale
Find fourth proportional to 1,157,633.92, 1,734,351.36 and 854,778.16
Double scale
Find fourth proportional to 578,817.96, 867,177.18 and 427,390.08
Similar ratio
Find fourth proportional to 868,225.44, 1,300,763.52 and 641,083.62
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.