Finding the Fourth Proportional to 880,692.09, 1,215,361.32 and 478,284.09
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Solution
The fourth proportional to 880,692.09, 1,215,361.32 and 478,284.09 is: 660,035.43
Step by Step Solution
- Step 1: Write the proportion equation
880,692.09 : 1,215,361.32 = 478,284.09 : x - Step 2: Convert to fraction form
880,692.09/1,215,361.32 = 478,284.09/x - Step 3: Cross multiply
880,692.09x = 1,215,361.32 × 478,284.09 - Step 4: Simplify right side
880,692.09x = 581,287,982,957.40 - Step 5: Solve for x
x = 581,287,982,957.40/880,692.09 - Step 6: Final answer
x = 660,035.43
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1.5x scale
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.