Finding the Fourth Proportional to 3,820,304.78, 5,728,485.20 and 1,124,279.92
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Solution
The fourth proportional to 3,820,304.78, 5,728,485.20 and 1,124,279.92 is: 1,685,839.55
Step by Step Solution
- Step 1: Write the proportion equation
3,820,304.78 : 5,728,485.20 = 1,124,279.92 : x - Step 2: Convert to fraction form
3,820,304.78/5,728,485.20 = 1,124,279.92/x - Step 3: Cross multiply
3,820,304.78x = 5,728,485.20 × 1,124,279.92 - Step 4: Simplify right side
3,820,304.78x = 6,440,420,882,377.18 - Step 5: Solve for x
x = 6,440,420,882,377.18/3,820,304.78 - Step 6: Final answer
x = 1,685,839.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.