Finding the Fourth Proportional to 1,121,853.97, 1,548,152.35 and 612,552.70
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Solution
The fourth proportional to 1,121,853.97, 1,548,152.35 and 612,552.70 is: 845,319.38
Step by Step Solution
- Step 1: Write the proportion equation
1,121,853.97 : 1,548,152.35 = 612,552.70 : x - Step 2: Convert to fraction form
1,121,853.97/1,548,152.35 = 612,552.70/x - Step 3: Cross multiply
1,121,853.97x = 1,548,152.35 × 612,552.70 - Step 4: Simplify right side
1,121,853.97x = 948,324,902,003.85 - Step 5: Solve for x
x = 948,324,902,003.85/1,121,853.97 - Step 6: Final answer
x = 845,319.38
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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.