Finding the Fourth Proportional to 393,313.95, 590,116.73 and 378,733.95
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Solution
The fourth proportional to 393,313.95, 590,116.73 and 378,733.95 is: 568,241.32
Step by Step Solution
- Step 1: Write the proportion equation
393,313.95 : 590,116.73 = 378,733.95 : x - Step 2: Convert to fraction form
393,313.95/590,116.73 = 378,733.95/x - Step 3: Cross multiply
393,313.95x = 590,116.73 × 378,733.95 - Step 4: Simplify right side
393,313.95x = 223,497,238,220.31 - Step 5: Solve for x
x = 223,497,238,220.31/393,313.95 - Step 6: Final answer
x = 568,241.32
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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.