Finding the Fourth Proportional to 3,436,423.61, 4,741,987.10 and 1,986,212.97
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Solution
The fourth proportional to 3,436,423.61, 4,741,987.10 and 1,986,212.97 is: 2,740,813.52
Step by Step Solution
- Step 1: Write the proportion equation
3,436,423.61 : 4,741,987.10 = 1,986,212.97 : x - Step 2: Convert to fraction form
3,436,423.61/4,741,987.10 = 1,986,212.97/x - Step 3: Cross multiply
3,436,423.61x = 4,741,987.10 × 1,986,212.97 - Step 4: Simplify right side
3,436,423.61x = 9,418,596,271,661.62 - Step 5: Solve for x
x = 9,418,596,271,661.62/3,436,423.61 - Step 6: Final answer
x = 2,740,813.52
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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.