Finding the Fourth Proportional to 478,062.19, 659,713.98 and 274,233.79
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Solution
The fourth proportional to 478,062.19, 659,713.98 and 274,233.79 is: 378,435.84
Step by Step Solution
- Step 1: Write the proportion equation
478,062.19 : 659,713.98 = 274,233.79 : x - Step 2: Convert to fraction form
478,062.19/659,713.98 = 274,233.79/x - Step 3: Cross multiply
478,062.19x = 659,713.98 × 274,233.79 - Step 4: Simplify right side
478,062.19x = 180,915,865,051.38 - Step 5: Solve for x
x = 180,915,865,051.38/478,062.19 - Step 6: Final answer
x = 378,435.84
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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.