Finding the Fourth Proportional to 359,721.49, 496,475.69 and 343,777.81
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Solution
The fourth proportional to 359,721.49, 496,475.69 and 343,777.81 is: 474,470.75
Step by Step Solution
- Step 1: Write the proportion equation
359,721.49 : 496,475.69 = 343,777.81 : x - Step 2: Convert to fraction form
359,721.49/496,475.69 = 343,777.81/x - Step 3: Cross multiply
359,721.49x = 496,475.69 × 343,777.81 - Step 4: Simplify right side
359,721.49x = 170,677,323,707.55 - Step 5: Solve for x
x = 170,677,323,707.55/359,721.49 - Step 6: Final answer
x = 474,470.75
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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.