Finding the Fourth Proportional to 3,081,486.69, 4,252,541.73 and 1,686,132.09
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Solution
The fourth proportional to 3,081,486.69, 4,252,541.73 and 1,686,132.09 is: 2,326,911.58
Step by Step Solution
- Step 1: Write the proportion equation
3,081,486.69 : 4,252,541.73 = 1,686,132.09 : x - Step 2: Convert to fraction form
3,081,486.69/4,252,541.73 = 1,686,132.09/x - Step 3: Cross multiply
3,081,486.69x = 4,252,541.73 × 1,686,132.09 - Step 4: Simplify right side
3,081,486.69x = 7,170,347,053,754.41 - Step 5: Solve for x
x = 7,170,347,053,754.41/3,081,486.69 - Step 6: Final answer
x = 2,326,911.58
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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.