Finding the Fourth Proportional to 848,391.68, 1,272,579.84 and 257,415.68
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Solution
The fourth proportional to 848,391.68, 1,272,579.84 and 257,415.68 is: 386,121.19
Step by Step Solution
- Step 1: Write the proportion equation
848,391.68 : 1,272,579.84 = 257,415.68 : x - Step 2: Convert to fraction form
848,391.68/1,272,579.84 = 257,415.68/x - Step 3: Cross multiply
848,391.68x = 1,272,579.84 × 257,415.68 - Step 4: Simplify right side
848,391.68x = 327,582,004,867.89 - Step 5: Solve for x
x = 327,582,004,867.89/848,391.68 - Step 6: Final answer
x = 386,121.19
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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.