Finding the Fourth Proportional to 486,740.64, 671,635.68 and 271,853.28
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Solution
The fourth proportional to 486,740.64, 671,635.68 and 271,853.28 is: 375,120.44
Step by Step Solution
- Step 1: Write the proportion equation
486,740.64 : 671,635.68 = 271,853.28 : x - Step 2: Convert to fraction form
486,740.64/671,635.68 = 271,853.28/x - Step 3: Cross multiply
486,740.64x = 671,635.68 × 271,853.28 - Step 4: Simplify right side
486,740.64x = 182,586,362,573.03 - Step 5: Solve for x
x = 182,586,362,573.03/486,740.64 - Step 6: Final answer
x = 375,120.44
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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.