Finding the Fourth Proportional to 3,081,538.71, 4,252,367.82 and 1,686,070.14
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Solution
The fourth proportional to 3,081,538.71, 4,252,367.82 and 1,686,070.14 is: 2,326,691.65
Step by Step Solution
- Step 1: Write the proportion equation
3,081,538.71 : 4,252,367.82 = 1,686,070.14 : x - Step 2: Convert to fraction form
3,081,538.71/4,252,367.82 = 1,686,070.14/x - Step 3: Cross multiply
3,081,538.71x = 4,252,367.82 × 1,686,070.14 - Step 4: Simplify right side
3,081,538.71x = 7,169,790,399,183.15 - Step 5: Solve for x
x = 7,169,790,399,183.15/3,081,538.71 - Step 6: Final answer
x = 2,326,691.65
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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.