Finding the Fourth Proportional to 638,342.10, 880,664.94 and 366,311.70
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Solution
The fourth proportional to 638,342.10, 880,664.94 and 366,311.70 is: 505,368.31
Step by Step Solution
- Step 1: Write the proportion equation
638,342.10 : 880,664.94 = 366,311.70 : x - Step 2: Convert to fraction form
638,342.10/880,664.94 = 366,311.70/x - Step 3: Cross multiply
638,342.10x = 880,664.94 × 366,311.70 - Step 4: Simplify right side
638,342.10x = 322,597,871,301.80 - Step 5: Solve for x
x = 322,597,871,301.80/638,342.10 - Step 6: Final answer
x = 505,368.31
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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.