Finding the Fourth Proportional to 2,157,809.28, 2,976,093.36 and 1,383,514.08
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Solution
The fourth proportional to 2,157,809.28, 2,976,093.36 and 1,383,514.08 is: 1,908,170.06
Step by Step Solution
- Step 1: Write the proportion equation
2,157,809.28 : 2,976,093.36 = 1,383,514.08 : x - Step 2: Convert to fraction form
2,157,809.28/2,976,093.36 = 1,383,514.08/x - Step 3: Cross multiply
2,157,809.28x = 2,976,093.36 × 1,383,514.08 - Step 4: Simplify right side
2,157,809.28x = 4,117,467,066,954.51 - Step 5: Solve for x
x = 4,117,467,066,954.51/2,157,809.28 - Step 6: Final answer
x = 1,908,170.06
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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.