Finding the Fourth Proportional to 622,249.11, 858,345.96 and 392,724.84
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Solution
The fourth proportional to 622,249.11, 858,345.96 and 392,724.84 is: 541,734.45
Step by Step Solution
- Step 1: Write the proportion equation
622,249.11 : 858,345.96 = 392,724.84 : x - Step 2: Convert to fraction form
622,249.11/858,345.96 = 392,724.84/x - Step 3: Cross multiply
622,249.11x = 858,345.96 × 392,724.84 - Step 4: Simplify right side
622,249.11x = 337,093,779,805.65 - Step 5: Solve for x
x = 337,093,779,805.65/622,249.11 - Step 6: Final answer
x = 541,734.45
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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.