Finding the Fourth Proportional to 809,709.12, 1,213,750.84 and 276,865.74
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Solution
The fourth proportional to 809,709.12, 1,213,750.84 and 276,865.74 is: 415,020.67
Step by Step Solution
- Step 1: Write the proportion equation
809,709.12 : 1,213,750.84 = 276,865.74 : x - Step 2: Convert to fraction form
809,709.12/1,213,750.84 = 276,865.74/x - Step 3: Cross multiply
809,709.12x = 1,213,750.84 × 276,865.74 - Step 4: Simplify right side
809,709.12x = 336,046,024,492.22 - Step 5: Solve for x
x = 336,046,024,492.22/809,709.12 - Step 6: Final answer
x = 415,020.67
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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.