Finding the Fourth Proportional to 3,405,661.40, 4,694,929.49 and 2,679,247.53
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Solution
The fourth proportional to 3,405,661.40, 4,694,929.49 and 2,679,247.53 is: 3,693,519.92
Step by Step Solution
- Step 1: Write the proportion equation
3,405,661.40 : 4,694,929.49 = 2,679,247.53 : x - Step 2: Convert to fraction form
3,405,661.40/4,694,929.49 = 2,679,247.53/x - Step 3: Cross multiply
3,405,661.40x = 4,694,929.49 × 2,679,247.53 - Step 4: Simplify right side
3,405,661.40x = 12,578,878,246,304.78 - Step 5: Solve for x
x = 12,578,878,246,304.78/3,405,661.40 - Step 6: Final answer
x = 3,693,519.92
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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.