Finding the Fourth Proportional to 3,509,423.40, 5,264,135.10 and 3,183,997.80
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Solution
The fourth proportional to 3,509,423.40, 5,264,135.10 and 3,183,997.80 is: 4,775,996.70
Step by Step Solution
- Step 1: Write the proportion equation
3,509,423.40 : 5,264,135.10 = 3,183,997.80 : x - Step 2: Convert to fraction form
3,509,423.40/5,264,135.10 = 3,183,997.80/x - Step 3: Cross multiply
3,509,423.40x = 5,264,135.10 × 3,183,997.80 - Step 4: Simplify right side
3,509,423.40x = 16,760,994,577,302.78 - Step 5: Solve for x
x = 16,760,994,577,302.78/3,509,423.40 - Step 6: Final answer
x = 4,775,996.70
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1.5x scale
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.