Finding the Fourth Proportional to 809,707.87, 1,213,748.97 and 276,864.49
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Solution
The fourth proportional to 809,707.87, 1,213,748.97 and 276,864.49 is: 415,018.80
Step by Step Solution
- Step 1: Write the proportion equation
809,707.87 : 1,213,748.97 = 276,864.49 : x - Step 2: Convert to fraction form
809,707.87/1,213,748.97 = 276,864.49/x - Step 3: Cross multiply
809,707.87x = 1,213,748.97 × 276,864.49 - Step 4: Simplify right side
809,707.87x = 336,043,989,567.08 - Step 5: Solve for x
x = 336,043,989,567.08/809,707.87 - Step 6: Final answer
x = 415,018.80
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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.