Finding the Fourth Proportional to 4,426,936.20, 6,643,514.70 and 1,904,401.80
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Solution
The fourth proportional to 4,426,936.20, 6,643,514.70 and 1,904,401.80 is: 2,857,940.75
Step by Step Solution
- Step 1: Write the proportion equation
4,426,936.20 : 6,643,514.70 = 1,904,401.80 : x - Step 2: Convert to fraction form
4,426,936.20/6,643,514.70 = 1,904,401.80/x - Step 3: Cross multiply
4,426,936.20x = 6,643,514.70 × 1,904,401.80 - Step 4: Simplify right side
4,426,936.20x = 12,651,921,353,006.46 - Step 5: Solve for x
x = 12,651,921,353,006.46/4,426,936.20 - Step 6: Final answer
x = 2,857,940.75
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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.