Finding the Fourth Proportional to 809,634.20, 1,214,451.30 and 336,075.80
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Solution
The fourth proportional to 809,634.20, 1,214,451.30 and 336,075.80 is: 504,113.70
Step by Step Solution
- Step 1: Write the proportion equation
809,634.20 : 1,214,451.30 = 336,075.80 : x - Step 2: Convert to fraction form
809,634.20/1,214,451.30 = 336,075.80/x - Step 3: Cross multiply
809,634.20x = 1,214,451.30 × 336,075.80 - Step 4: Simplify right side
809,634.20x = 408,147,692,208.54 - Step 5: Solve for x
x = 408,147,692,208.54/809,634.20 - Step 6: Final answer
x = 504,113.70
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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.