Finding the Fourth Proportional to 996,115.26, 1,374,637.32 and 543,406.26
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Solution
The fourth proportional to 996,115.26, 1,374,637.32 and 543,406.26 is: 749,899.69
Step by Step Solution
- Step 1: Write the proportion equation
996,115.26 : 1,374,637.32 = 543,406.26 : x - Step 2: Convert to fraction form
996,115.26/1,374,637.32 = 543,406.26/x - Step 3: Cross multiply
996,115.26x = 1,374,637.32 × 543,406.26 - Step 4: Simplify right side
996,115.26x = 746,986,524,917.62 - Step 5: Solve for x
x = 746,986,524,917.62/996,115.26 - Step 6: Final answer
x = 749,899.69
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1.5x scale
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.