Finding the Fourth Proportional to 1,208,405.09, 1,667,641.81 and 664,582.97
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Solution
The fourth proportional to 1,208,405.09, 1,667,641.81 and 664,582.97 is: 917,148.03
Step by Step Solution
- Step 1: Write the proportion equation
1,208,405.09 : 1,667,641.81 = 664,582.97 : x - Step 2: Convert to fraction form
1,208,405.09/1,667,641.81 = 664,582.97/x - Step 3: Cross multiply
1,208,405.09x = 1,667,641.81 × 664,582.97 - Step 4: Simplify right side
1,208,405.09x = 1,108,286,338,647.77 - Step 5: Solve for x
x = 1,108,286,338,647.77/1,208,405.09 - Step 6: Final answer
x = 917,148.03
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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.