Finding the Fourth Proportional to 2,642,115.75, 3,963,173.76 and 647,571.75
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Solution
The fourth proportional to 2,642,115.75, 3,963,173.76 and 647,571.75 is: 971,357.66
Step by Step Solution
- Step 1: Write the proportion equation
2,642,115.75 : 3,963,173.76 = 647,571.75 : x - Step 2: Convert to fraction form
2,642,115.75/3,963,173.76 = 647,571.75/x - Step 3: Cross multiply
2,642,115.75x = 3,963,173.76 × 647,571.75 - Step 4: Simplify right side
2,642,115.75x = 2,566,439,367,317.28 - Step 5: Solve for x
x = 2,566,439,367,317.28/2,642,115.75 - Step 6: Final answer
x = 971,357.66
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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.