Finding the Fourth Proportional to 857,586.38, 1,284,664.28 and 515,841.09
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Solution
The fourth proportional to 857,586.38, 1,284,664.28 and 515,841.09 is: 772,729.88
Step by Step Solution
- Step 1: Write the proportion equation
857,586.38 : 1,284,664.28 = 515,841.09 : x - Step 2: Convert to fraction form
857,586.38/1,284,664.28 = 515,841.09/x - Step 3: Cross multiply
857,586.38x = 1,284,664.28 × 515,841.09 - Step 4: Simplify right side
857,586.38x = 662,682,619,900.06 - Step 5: Solve for x
x = 662,682,619,900.06/857,586.38 - Step 6: Final answer
x = 772,729.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.