Finding the Fourth Proportional to 681,107.36, 939,860.88 and 379,329.44
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Solution
The fourth proportional to 681,107.36, 939,860.88 and 379,329.44 is: 523,437.16
Step by Step Solution
- Step 1: Write the proportion equation
681,107.36 : 939,860.88 = 379,329.44 : x - Step 2: Convert to fraction form
681,107.36/939,860.88 = 379,329.44/x - Step 3: Cross multiply
681,107.36x = 939,860.88 × 379,329.44 - Step 4: Simplify right side
681,107.36x = 356,516,901,288.31 - Step 5: Solve for x
x = 356,516,901,288.31/681,107.36 - Step 6: Final answer
x = 523,437.16
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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.