Finding the Fourth Proportional to 821,912.97, 1,134,589.05 and 499,725.93
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Solution
The fourth proportional to 821,912.97, 1,134,589.05 and 499,725.93 is: 689,834.07
Step by Step Solution
- Step 1: Write the proportion equation
821,912.97 : 1,134,589.05 = 499,725.93 : x - Step 2: Convert to fraction form
821,912.97/1,134,589.05 = 499,725.93/x - Step 3: Cross multiply
821,912.97x = 1,134,589.05 × 499,725.93 - Step 4: Simplify right side
821,912.97x = 566,983,568,179.07 - Step 5: Solve for x
x = 566,983,568,179.07/821,912.97 - Step 6: Final answer
x = 689,834.07
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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.