Finding the Fourth Proportional to 716,232.50, 988,419.55 and 393,951.05
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Solution
The fourth proportional to 716,232.50, 988,419.55 and 393,951.05 is: 543,662.73
Step by Step Solution
- Step 1: Write the proportion equation
716,232.50 : 988,419.55 = 393,951.05 : x - Step 2: Convert to fraction form
716,232.50/988,419.55 = 393,951.05/x - Step 3: Cross multiply
716,232.50x = 988,419.55 × 393,951.05 - Step 4: Simplify right side
716,232.50x = 389,388,919,563.03 - Step 5: Solve for x
x = 389,388,919,563.03/716,232.50 - Step 6: Final answer
x = 543,662.73
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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.