Finding the Fourth Proportional to 716,019.44, 988,132.19 and 393,754.05
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Solution
The fourth proportional to 716,019.44, 988,132.19 and 393,754.05 is: 543,394.54
Step by Step Solution
- Step 1: Write the proportion equation
716,019.44 : 988,132.19 = 393,754.05 : x - Step 2: Convert to fraction form
716,019.44/988,132.19 = 393,754.05/x - Step 3: Cross multiply
716,019.44x = 988,132.19 × 393,754.05 - Step 4: Simplify right side
716,019.44x = 389,081,049,779.10 - Step 5: Solve for x
x = 389,081,049,779.10/716,019.44 - Step 6: Final answer
x = 543,394.54
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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.