Finding the Fourth Proportional to 686,045.34, 1,029,231.50 and 236,770.08
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Solution
The fourth proportional to 686,045.34, 1,029,231.50 and 236,770.08 is: 355,211.54
Step by Step Solution
- Step 1: Write the proportion equation
686,045.34 : 1,029,231.50 = 236,770.08 : x - Step 2: Convert to fraction form
686,045.34/1,029,231.50 = 236,770.08/x - Step 3: Cross multiply
686,045.34x = 1,029,231.50 × 236,770.08 - Step 4: Simplify right side
686,045.34x = 243,691,223,409.67 - Step 5: Solve for x
x = 243,691,223,409.67/686,045.34 - Step 6: Final answer
x = 355,211.54
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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.