Finding the Fourth Proportional to 407,512.33, 611,371.68 and 287,803.13
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Solution
The fourth proportional to 407,512.33, 611,371.68 and 287,803.13 is: 431,777.56
Step by Step Solution
- Step 1: Write the proportion equation
407,512.33 : 611,371.68 = 287,803.13 : x - Step 2: Convert to fraction form
407,512.33/611,371.68 = 287,803.13/x - Step 3: Cross multiply
407,512.33x = 611,371.68 × 287,803.13 - Step 4: Simplify right side
407,512.33x = 175,954,680,580.13 - Step 5: Solve for x
x = 175,954,680,580.13/407,512.33 - Step 6: Final answer
x = 431,777.56
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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.