Finding the Fourth Proportional to 393,548.80, 590,323.18 and 374,427.14
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Solution
The fourth proportional to 393,548.80, 590,323.18 and 374,427.14 is: 561,640.69
Step by Step Solution
- Step 1: Write the proportion equation
393,548.80 : 590,323.18 = 374,427.14 : x - Step 2: Convert to fraction form
393,548.80/590,323.18 = 374,427.14/x - Step 3: Cross multiply
393,548.80x = 590,323.18 × 374,427.14 - Step 4: Simplify right side
393,548.80x = 221,033,019,963.11 - Step 5: Solve for x
x = 221,033,019,963.11/393,548.80 - Step 6: Final answer
x = 561,640.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.