Finding the Fourth Proportional to 1,268,907.89, 1,751,106.41 and 688,132.08
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Solution
The fourth proportional to 1,268,907.89, 1,751,106.41 and 688,132.08 is: 949,629.60
Step by Step Solution
- Step 1: Write the proportion equation
1,268,907.89 : 1,751,106.41 = 688,132.08 : x - Step 2: Convert to fraction form
1,268,907.89/1,751,106.41 = 688,132.08/x - Step 3: Cross multiply
1,268,907.89x = 1,751,106.41 × 688,132.08 - Step 4: Simplify right side
1,268,907.89x = 1,204,992,492,773.97 - Step 5: Solve for x
x = 1,204,992,492,773.97/1,268,907.89 - Step 6: Final answer
x = 949,629.60
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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.