Finding the Fourth Proportional to 857,311.05, 1,285,161.98 and 288,294.29
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Solution
The fourth proportional to 857,311.05, 1,285,161.98 and 288,294.29 is: 432,170.86
Step by Step Solution
- Step 1: Write the proportion equation
857,311.05 : 1,285,161.98 = 288,294.29 : x - Step 2: Convert to fraction form
857,311.05/1,285,161.98 = 288,294.29/x - Step 3: Cross multiply
857,311.05x = 1,285,161.98 × 288,294.29 - Step 4: Simplify right side
857,311.05x = 370,504,852,691.81 - Step 5: Solve for x
x = 370,504,852,691.81/857,311.05 - Step 6: Final answer
x = 432,170.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.