Finding the Fourth Proportional to 809,774.70, 1,212,912.45 and 669,806.70
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Solution
The fourth proportional to 809,774.70, 1,212,912.45 and 669,806.70 is: 1,003,262.86
Step by Step Solution
- Step 1: Write the proportion equation
809,774.70 : 1,212,912.45 = 669,806.70 : x - Step 2: Convert to fraction form
809,774.70/1,212,912.45 = 669,806.70/x - Step 3: Cross multiply
809,774.70x = 1,212,912.45 × 669,806.70 - Step 4: Simplify right side
809,774.70x = 812,416,885,523.42 - Step 5: Solve for x
x = 812,416,885,523.42/809,774.70 - Step 6: Final answer
x = 1,003,262.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.