Finding the Fourth Proportional to 414,554.37, 621,761.99 and 115,065.38
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Solution
The fourth proportional to 414,554.37, 621,761.99 and 115,065.38 is: 172,578.75
Step by Step Solution
- Step 1: Write the proportion equation
414,554.37 : 621,761.99 = 115,065.38 : x - Step 2: Convert to fraction form
414,554.37/621,761.99 = 115,065.38/x - Step 3: Cross multiply
414,554.37x = 621,761.99 × 115,065.38 - Step 4: Simplify right side
414,554.37x = 71,543,275,964.77 - Step 5: Solve for x
x = 71,543,275,964.77/414,554.37 - Step 6: Final answer
x = 172,578.75
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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.