Finding the Fourth Proportional to 1,479,668.22, 2,218,190.13 and 721,085.40
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Solution
The fourth proportional to 1,479,668.22, 2,218,190.13 and 721,085.40 is: 1,080,988.63
Step by Step Solution
- Step 1: Write the proportion equation
1,479,668.22 : 2,218,190.13 = 721,085.40 : x - Step 2: Convert to fraction form
1,479,668.22/2,218,190.13 = 721,085.40/x - Step 3: Cross multiply
1,479,668.22x = 2,218,190.13 × 721,085.40 - Step 4: Simplify right side
1,479,668.22x = 1,599,504,517,167.10 - Step 5: Solve for x
x = 1,599,504,517,167.10/1,479,668.22 - Step 6: Final answer
x = 1,080,988.63
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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.