Finding the Fourth Proportional to 699,939.92, 965,908.68 and 398,133.20
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Solution
The fourth proportional to 699,939.92, 965,908.68 and 398,133.20 is: 549,419.03
Step by Step Solution
- Step 1: Write the proportion equation
699,939.92 : 965,908.68 = 398,133.20 : x - Step 2: Convert to fraction form
699,939.92/965,908.68 = 398,133.20/x - Step 3: Cross multiply
699,939.92x = 965,908.68 × 398,133.20 - Step 4: Simplify right side
699,939.92x = 384,560,313,676.18 - Step 5: Solve for x
x = 384,560,313,676.18/699,939.92 - Step 6: Final answer
x = 549,419.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.