Finding the Fourth Proportional to 587,088.28, 809,903.64 and 396,163.18
Calculator
Solution
The fourth proportional to 587,088.28, 809,903.64 and 396,163.18 is: 546,517.47
Step by Step Solution
- Step 1: Write the proportion equation
587,088.28 : 809,903.64 = 396,163.18 : x - Step 2: Convert to fraction form
587,088.28/809,903.64 = 396,163.18/x - Step 3: Cross multiply
587,088.28x = 809,903.64 × 396,163.18 - Step 4: Simplify right side
587,088.28x = 320,854,001,515.98 - Step 5: Solve for x
x = 320,854,001,515.98/587,088.28 - Step 6: Final answer
x = 546,517.47
Related Problems
Find fourth proportional to 293,544.14, 404,951.82 and 198,081.59
Half scale
Find fourth proportional to 1,174,176.56, 1,619,807.28 and 792,326.36
Double scale
Find fourth proportional to 587,089.28, 809,905.02 and 396,164.18
Similar ratio
Find fourth proportional to 880,632.42, 1,214,855.46 and 594,244.77
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.