Finding the Fourth Proportional to 838,141.20, 1,257,211.80 and 277,175.70
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Solution
The fourth proportional to 838,141.20, 1,257,211.80 and 277,175.70 is: 415,763.55
Step by Step Solution
- Step 1: Write the proportion equation
838,141.20 : 1,257,211.80 = 277,175.70 : x - Step 2: Convert to fraction form
838,141.20/1,257,211.80 = 277,175.70/x - Step 3: Cross multiply
838,141.20x = 1,257,211.80 × 277,175.70 - Step 4: Simplify right side
838,141.20x = 348,468,560,713.26 - Step 5: Solve for x
x = 348,468,560,713.26/838,141.20 - Step 6: Final answer
x = 415,763.55
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Similar ratio
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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.