Finding the Fourth Proportional to 386,577.54, 579,727.26 and 133,789.41
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Solution
The fourth proportional to 386,577.54, 579,727.26 and 133,789.41 is: 200,635.99
Step by Step Solution
- Step 1: Write the proportion equation
386,577.54 : 579,727.26 = 133,789.41 : x - Step 2: Convert to fraction form
386,577.54/579,727.26 = 133,789.41/x - Step 3: Cross multiply
386,577.54x = 579,727.26 × 133,789.41 - Step 4: Simplify right side
386,577.54x = 77,561,368,076.32 - Step 5: Solve for x
x = 77,561,368,076.32/386,577.54 - Step 6: Final answer
x = 200,635.99
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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.