Finding the Fourth Proportional to 821,912.29, 1,134,273.99 and 459,336.14
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Solution
The fourth proportional to 821,912.29, 1,134,273.99 and 459,336.14 is: 633,903.45
Step by Step Solution
- Step 1: Write the proportion equation
821,912.29 : 1,134,273.99 = 459,336.14 : x - Step 2: Convert to fraction form
821,912.29/1,134,273.99 = 459,336.14/x - Step 3: Cross multiply
821,912.29x = 1,134,273.99 × 459,336.14 - Step 4: Simplify right side
821,912.29x = 521,013,035,252.09 - Step 5: Solve for x
x = 521,013,035,252.09/821,912.29 - Step 6: Final answer
x = 633,903.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.