Finding the Fourth Proportional to 681,102.09, 1,020,078.45 and 657,482.49
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Solution
The fourth proportional to 681,102.09, 1,020,078.45 and 657,482.49 is: 984,703.66
Step by Step Solution
- Step 1: Write the proportion equation
681,102.09 : 1,020,078.45 = 657,482.49 : x - Step 2: Convert to fraction form
681,102.09/1,020,078.45 = 657,482.49/x - Step 3: Cross multiply
681,102.09x = 1,020,078.45 × 657,482.49 - Step 4: Simplify right side
681,102.09x = 670,683,719,301.34 - Step 5: Solve for x
x = 670,683,719,301.34/681,102.09 - Step 6: Final answer
x = 984,703.66
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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.