Finding the Fourth Proportional to 639,591.80, 882,637.99 and 353,112.44
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Solution
The fourth proportional to 639,591.80, 882,637.99 and 353,112.44 is: 487,295.88
Step by Step Solution
- Step 1: Write the proportion equation
639,591.80 : 882,637.99 = 353,112.44 : x - Step 2: Convert to fraction form
639,591.80/882,637.99 = 353,112.44/x - Step 3: Cross multiply
639,591.80x = 882,637.99 × 353,112.44 - Step 4: Simplify right side
639,591.80x = 311,670,448,989.63 - Step 5: Solve for x
x = 311,670,448,989.63/639,591.80 - Step 6: Final answer
x = 487,295.88
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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.