Finding the Fourth Proportional to 1,287,511.44, 1,775,531.52 and 771,182.88
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Solution
The fourth proportional to 1,287,511.44, 1,775,531.52 and 771,182.88 is: 1,063,493.08
Step by Step Solution
- Step 1: Write the proportion equation
1,287,511.44 : 1,775,531.52 = 771,182.88 : x - Step 2: Convert to fraction form
1,287,511.44/1,775,531.52 = 771,182.88/x - Step 3: Cross multiply
1,287,511.44x = 1,775,531.52 × 771,182.88 - Step 4: Simplify right side
1,287,511.44x = 1,369,259,511,124.38 - Step 5: Solve for x
x = 1,369,259,511,124.38/1,287,511.44 - Step 6: Final answer
x = 1,063,493.08
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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.