Finding the Fourth Proportional to 678,926.80, 936,933.84 and 373,007.12
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Solution
The fourth proportional to 678,926.80, 936,933.84 and 373,007.12 is: 514,757.99
Step by Step Solution
- Step 1: Write the proportion equation
678,926.80 : 936,933.84 = 373,007.12 : x - Step 2: Convert to fraction form
678,926.80/936,933.84 = 373,007.12/x - Step 3: Cross multiply
678,926.80x = 936,933.84 × 373,007.12 - Step 4: Simplify right side
678,926.80x = 349,482,993,288.94 - Step 5: Solve for x
x = 349,482,993,288.94/678,926.80 - Step 6: Final answer
x = 514,757.99
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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.