Finding the Fourth Proportional to 686,609.46, 1,029,229.74 and 326,148.12
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Solution
The fourth proportional to 686,609.46, 1,029,229.74 and 326,148.12 is: 488,897.06
Step by Step Solution
- Step 1: Write the proportion equation
686,609.46 : 1,029,229.74 = 326,148.12 : x - Step 2: Convert to fraction form
686,609.46/1,029,229.74 = 326,148.12/x - Step 3: Cross multiply
686,609.46x = 1,029,229.74 × 326,148.12 - Step 4: Simplify right side
686,609.46x = 335,681,344,749.09 - Step 5: Solve for x
x = 335,681,344,749.09/686,609.46 - Step 6: Final answer
x = 488,897.06
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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.