Finding the Fourth Proportional to 678,907.62, 936,922.17 and 377,101.62
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Solution
The fourth proportional to 678,907.62, 936,922.17 and 377,101.62 is: 520,416.71
Step by Step Solution
- Step 1: Write the proportion equation
678,907.62 : 936,922.17 = 377,101.62 : x - Step 2: Convert to fraction form
678,907.62/936,922.17 = 377,101.62/x - Step 3: Cross multiply
678,907.62x = 936,922.17 × 377,101.62 - Step 4: Simplify right side
678,907.62x = 353,314,868,120.92 - Step 5: Solve for x
x = 353,314,868,120.92/678,907.62 - Step 6: Final answer
x = 520,416.71
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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.