Finding the Fourth Proportional to 1,805,755.57, 2,491,888.68 and 989,931.37
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Solution
The fourth proportional to 1,805,755.57, 2,491,888.68 and 989,931.37 is: 1,366,075.68
Step by Step Solution
- Step 1: Write the proportion equation
1,805,755.57 : 2,491,888.68 = 989,931.37 : x - Step 2: Convert to fraction form
1,805,755.57/2,491,888.68 = 989,931.37/x - Step 3: Cross multiply
1,805,755.57x = 2,491,888.68 × 989,931.37 - Step 4: Simplify right side
1,805,755.57x = 2,466,798,774,879.89 - Step 5: Solve for x
x = 2,466,798,774,879.89/1,805,755.57 - Step 6: Final answer
x = 1,366,075.68
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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.