Finding the Fourth Proportional to 2,165,628.62, 2,988,531.33 and 1,198,738.19
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Solution
The fourth proportional to 2,165,628.62, 2,988,531.33 and 1,198,738.19 is: 1,654,238.68
Step by Step Solution
- Step 1: Write the proportion equation
2,165,628.62 : 2,988,531.33 = 1,198,738.19 : x - Step 2: Convert to fraction form
2,165,628.62/2,988,531.33 = 1,198,738.19/x - Step 3: Cross multiply
2,165,628.62x = 2,988,531.33 × 1,198,738.19 - Step 4: Simplify right side
2,165,628.62x = 3,582,466,637,282.49 - Step 5: Solve for x
x = 3,582,466,637,282.49/2,165,628.62 - Step 6: Final answer
x = 1,654,238.68
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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.