Finding the Fourth Proportional to 816,420.24, 1,224,804.96 and 342,861.84
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Solution
The fourth proportional to 816,420.24, 1,224,804.96 and 342,861.84 is: 514,366.08
Step by Step Solution
- Step 1: Write the proportion equation
816,420.24 : 1,224,804.96 = 342,861.84 : x - Step 2: Convert to fraction form
816,420.24/1,224,804.96 = 342,861.84/x - Step 3: Cross multiply
816,420.24x = 1,224,804.96 × 342,861.84 - Step 4: Simplify right side
816,420.24x = 419,938,882,226.73 - Step 5: Solve for x
x = 419,938,882,226.73/816,420.24 - Step 6: Final answer
x = 514,366.08
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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.