Finding the Fourth Proportional to 628,664.55, 867,532.97 and 356,716.23
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Solution
The fourth proportional to 628,664.55, 867,532.97 and 356,716.23 is: 492,254.71
Step by Step Solution
- Step 1: Write the proportion equation
628,664.55 : 867,532.97 = 356,716.23 : x - Step 2: Convert to fraction form
628,664.55/867,532.97 = 356,716.23/x - Step 3: Cross multiply
628,664.55x = 867,532.97 × 356,716.23 - Step 4: Simplify right side
628,664.55x = 309,463,086,121.44 - Step 5: Solve for x
x = 309,463,086,121.44/628,664.55 - Step 6: Final answer
x = 492,254.71
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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.