Finding the Fourth Proportional to 393,148.74, 588,858.68 and 324,907.36
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Solution
The fourth proportional to 393,148.74, 588,858.68 and 324,907.36 is: 486,646.65
Step by Step Solution
- Step 1: Write the proportion equation
393,148.74 : 588,858.68 = 324,907.36 : x - Step 2: Convert to fraction form
393,148.74/588,858.68 = 324,907.36/x - Step 3: Cross multiply
393,148.74x = 588,858.68 × 324,907.36 - Step 4: Simplify right side
393,148.74x = 191,324,519,131.89 - Step 5: Solve for x
x = 191,324,519,131.89/393,148.74 - Step 6: Final answer
x = 486,646.65
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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.