Finding the Fourth Proportional to 3,081,488.69, 4,252,544.49 and 1,686,134.09
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Solution
The fourth proportional to 3,081,488.69, 4,252,544.49 and 1,686,134.09 is: 2,326,914.34
Step by Step Solution
- Step 1: Write the proportion equation
3,081,488.69 : 4,252,544.49 = 1,686,134.09 : x - Step 2: Convert to fraction form
3,081,488.69/4,252,544.49 = 1,686,134.09/x - Step 3: Cross multiply
3,081,488.69x = 4,252,544.49 × 1,686,134.09 - Step 4: Simplify right side
3,081,488.69x = 7,170,360,233,830.67 - Step 5: Solve for x
x = 7,170,360,233,830.67/3,081,488.69 - Step 6: Final answer
x = 2,326,914.34
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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.