Finding the Fourth Proportional to 986,418.71, 1,361,230.26 and 556,738.82
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Solution
The fourth proportional to 986,418.71, 1,361,230.26 and 556,738.82 is: 768,284.02
Step by Step Solution
- Step 1: Write the proportion equation
986,418.71 : 1,361,230.26 = 556,738.82 : x - Step 2: Convert to fraction form
986,418.71/1,361,230.26 = 556,738.82/x - Step 3: Cross multiply
986,418.71x = 1,361,230.26 × 556,738.82 - Step 4: Simplify right side
986,418.71x = 757,849,728,043.04 - Step 5: Solve for x
x = 757,849,728,043.04/986,418.71 - Step 6: Final answer
x = 768,284.02
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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.