Finding the Fourth Proportional to 727,768.94, 1,004,318.60 and 405,482.90
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Solution
The fourth proportional to 727,768.94, 1,004,318.60 and 405,482.90 is: 559,564.99
Step by Step Solution
- Step 1: Write the proportion equation
727,768.94 : 1,004,318.60 = 405,482.90 : x - Step 2: Convert to fraction form
727,768.94/1,004,318.60 = 405,482.90/x - Step 3: Cross multiply
727,768.94x = 1,004,318.60 × 405,482.90 - Step 4: Simplify right side
727,768.94x = 407,234,018,451.94 - Step 5: Solve for x
x = 407,234,018,451.94/727,768.94 - Step 6: Final answer
x = 559,564.99
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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.