Finding the Fourth Proportional to 639,736.88, 958,555.02 and 218,783.12
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Solution
The fourth proportional to 639,736.88, 958,555.02 and 218,783.12 is: 327,815.49
Step by Step Solution
- Step 1: Write the proportion equation
639,736.88 : 958,555.02 = 218,783.12 : x - Step 2: Convert to fraction form
639,736.88/958,555.02 = 218,783.12/x - Step 3: Cross multiply
639,736.88x = 958,555.02 × 218,783.12 - Step 4: Simplify right side
639,736.88x = 209,715,657,967.26 - Step 5: Solve for x
x = 209,715,657,967.26/639,736.88 - Step 6: Final answer
x = 327,815.49
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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.