Finding the Fourth Proportional to 3,906,691.44, 5,391,679.32 and 2,379,692.40
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Solution
The fourth proportional to 3,906,691.44, 5,391,679.32 and 2,379,692.40 is: 3,284,246.66
Step by Step Solution
- Step 1: Write the proportion equation
3,906,691.44 : 5,391,679.32 = 2,379,692.40 : x - Step 2: Convert to fraction form
3,906,691.44/5,391,679.32 = 2,379,692.40/x - Step 3: Cross multiply
3,906,691.44x = 5,391,679.32 × 2,379,692.40 - Step 4: Simplify right side
3,906,691.44x = 12,830,538,301,041.17 - Step 5: Solve for x
x = 12,830,538,301,041.17/3,906,691.44 - Step 6: Final answer
x = 3,284,246.66
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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.