Finding the Fourth Proportional to 538,738.08, 808,107.09 and 511,799.28
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Solution
The fourth proportional to 538,738.08, 808,107.09 and 511,799.28 is: 767,698.89
Step by Step Solution
- Step 1: Write the proportion equation
538,738.08 : 808,107.09 = 511,799.28 : x - Step 2: Convert to fraction form
538,738.08/808,107.09 = 511,799.28/x - Step 3: Cross multiply
538,738.08x = 808,107.09 × 511,799.28 - Step 4: Simplify right side
538,738.08x = 413,588,626,824.90 - Step 5: Solve for x
x = 413,588,626,824.90/538,738.08 - Step 6: Final answer
x = 767,698.89
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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.