Finding the Fourth Proportional to 639,213.63, 959,248.49 and 265,236.99
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Solution
The fourth proportional to 639,213.63, 959,248.49 and 265,236.99 is: 398,033.10
Step by Step Solution
- Step 1: Write the proportion equation
639,213.63 : 959,248.49 = 265,236.99 : x - Step 2: Convert to fraction form
639,213.63/959,248.49 = 265,236.99/x - Step 3: Cross multiply
639,213.63x = 959,248.49 × 265,236.99 - Step 4: Simplify right side
639,213.63x = 254,428,180,823.46 - Step 5: Solve for x
x = 254,428,180,823.46/639,213.63 - Step 6: Final answer
x = 398,033.10
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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.