Finding the Fourth Proportional to 748,081.80, 1,122,122.70 and 274,705.65
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Solution
The fourth proportional to 748,081.80, 1,122,122.70 and 274,705.65 is: 412,058.48
Step by Step Solution
- Step 1: Write the proportion equation
748,081.80 : 1,122,122.70 = 274,705.65 : x - Step 2: Convert to fraction form
748,081.80/1,122,122.70 = 274,705.65/x - Step 3: Cross multiply
748,081.80x = 1,122,122.70 × 274,705.65 - Step 4: Simplify right side
748,081.80x = 308,253,445,683.26 - Step 5: Solve for x
x = 308,253,445,683.26/748,081.80 - Step 6: Final answer
x = 412,058.48
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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.