Finding the Fourth Proportional to 996,116.26, 1,374,638.70 and 543,407.26
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Solution
The fourth proportional to 996,116.26, 1,374,638.70 and 543,407.26 is: 749,901.07
Step by Step Solution
- Step 1: Write the proportion equation
996,116.26 : 1,374,638.70 = 543,407.26 : x - Step 2: Convert to fraction form
996,116.26/1,374,638.70 = 543,407.26/x - Step 3: Cross multiply
996,116.26x = 1,374,638.70 × 543,407.26 - Step 4: Simplify right side
996,116.26x = 746,988,649,456.96 - Step 5: Solve for x
x = 746,988,649,456.96/996,116.26 - Step 6: Final answer
x = 749,901.07
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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.