Finding the Fourth Proportional to 716,465.26, 988,722.02 and 394,168.44
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Solution
The fourth proportional to 716,465.26, 988,722.02 and 394,168.44 is: 543,952.43
Step by Step Solution
- Step 1: Write the proportion equation
716,465.26 : 988,722.02 = 394,168.44 : x - Step 2: Convert to fraction form
716,465.26/988,722.02 = 394,168.44/x - Step 3: Cross multiply
716,465.26x = 988,722.02 × 394,168.44 - Step 4: Simplify right side
716,465.26x = 389,723,019,674.28 - Step 5: Solve for x
x = 389,723,019,674.28/716,465.26 - Step 6: Final answer
x = 543,952.43
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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.