Finding the Fourth Proportional to 995,128.43, 1,372,191.99 and 672,277.96
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Solution
The fourth proportional to 995,128.43, 1,372,191.99 and 672,277.96 is: 927,010.43
Step by Step Solution
- Step 1: Write the proportion equation
995,128.43 : 1,372,191.99 = 672,277.96 : x - Step 2: Convert to fraction form
995,128.43/1,372,191.99 = 672,277.96/x - Step 3: Cross multiply
995,128.43x = 1,372,191.99 × 672,277.96 - Step 4: Simplify right side
995,128.43x = 922,494,431,765.54 - Step 5: Solve for x
x = 922,494,431,765.54/995,128.43 - Step 6: Final answer
x = 927,010.43
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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.