Finding the Fourth Proportional to 809,634.26, 1,214,871.68 and 330,213.79
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Solution
The fourth proportional to 809,634.26, 1,214,871.68 and 330,213.79 is: 495,492.10
Step by Step Solution
- Step 1: Write the proportion equation
809,634.26 : 1,214,871.68 = 330,213.79 : x - Step 2: Convert to fraction form
809,634.26/1,214,871.68 = 330,213.79/x - Step 3: Cross multiply
809,634.26x = 1,214,871.68 × 330,213.79 - Step 4: Simplify right side
809,634.26x = 401,167,381,816.47 - Step 5: Solve for x
x = 401,167,381,816.47/809,634.26 - Step 6: Final answer
x = 495,492.10
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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.