Finding the Fourth Proportional to 1,909,687.91, 2,634,906.74 and 1,211,714.75
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Solution
The fourth proportional to 1,909,687.91, 2,634,906.74 and 1,211,714.75 is: 1,671,872.86
Step by Step Solution
- Step 1: Write the proportion equation
1,909,687.91 : 2,634,906.74 = 1,211,714.75 : x - Step 2: Convert to fraction form
1,909,687.91/2,634,906.74 = 1,211,714.75/x - Step 3: Cross multiply
1,909,687.91x = 2,634,906.74 × 1,211,714.75 - Step 4: Simplify right side
1,909,687.91x = 3,192,755,371,348.97 - Step 5: Solve for x
x = 3,192,755,371,348.97/1,909,687.91 - Step 6: Final answer
x = 1,671,872.86
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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.