Finding the Fourth Proportional to 699,894.72, 965,872.80 and 393,982.08
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Solution
The fourth proportional to 699,894.72, 965,872.80 and 393,982.08 is: 543,705.45
Step by Step Solution
- Step 1: Write the proportion equation
699,894.72 : 965,872.80 = 393,982.08 : x - Step 2: Convert to fraction form
699,894.72/965,872.80 = 393,982.08/x - Step 3: Cross multiply
699,894.72x = 965,872.80 × 393,982.08 - Step 4: Simplify right side
699,894.72x = 380,536,574,759.42 - Step 5: Solve for x
x = 380,536,574,759.42/699,894.72 - Step 6: Final answer
x = 543,705.45
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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.