Finding the Fourth Proportional to 874,662.91, 1,207,040.84 and 487,503.29
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Solution
The fourth proportional to 874,662.91, 1,207,040.84 and 487,503.29 is: 672,757.89
Step by Step Solution
- Step 1: Write the proportion equation
874,662.91 : 1,207,040.84 = 487,503.29 : x - Step 2: Convert to fraction form
874,662.91/1,207,040.84 = 487,503.29/x - Step 3: Cross multiply
874,662.91x = 1,207,040.84 × 487,503.29 - Step 4: Simplify right side
874,662.91x = 588,436,376,707.31 - Step 5: Solve for x
x = 588,436,376,707.31/874,662.91 - Step 6: Final answer
x = 672,757.89
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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.