Finding the Fourth Proportional to 2,989,945.98, 4,126,067.91 and 1,631,828.70
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Solution
The fourth proportional to 2,989,945.98, 4,126,067.91 and 1,631,828.70 is: 2,251,892.20
Step by Step Solution
- Step 1: Write the proportion equation
2,989,945.98 : 4,126,067.91 = 1,631,828.70 : x - Step 2: Convert to fraction form
2,989,945.98/4,126,067.91 = 1,631,828.70/x - Step 3: Cross multiply
2,989,945.98x = 4,126,067.91 × 1,631,828.70 - Step 4: Simplify right side
2,989,945.98x = 6,733,036,033,687.02 - Step 5: Solve for x
x = 6,733,036,033,687.02/2,989,945.98 - Step 6: Final answer
x = 2,251,892.20
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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.