Finding the Fourth Proportional to 638,838.12, 881,601.30 and 352,350.84
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Solution
The fourth proportional to 638,838.12, 881,601.30 and 352,350.84 is: 486,246.75
Step by Step Solution
- Step 1: Write the proportion equation
638,838.12 : 881,601.30 = 352,350.84 : x - Step 2: Convert to fraction form
638,838.12/881,601.30 = 352,350.84/x - Step 3: Cross multiply
638,838.12x = 881,601.30 × 352,350.84 - Step 4: Simplify right side
638,838.12x = 310,632,958,600.09 - Step 5: Solve for x
x = 310,632,958,600.09/638,838.12 - Step 6: Final answer
x = 486,246.75
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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.