Finding the Fourth Proportional to 876,352.92, 1,209,378.78 and 494,378.52
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Solution
The fourth proportional to 876,352.92, 1,209,378.78 and 494,378.52 is: 682,248.99
Step by Step Solution
- Step 1: Write the proportion equation
876,352.92 : 1,209,378.78 = 494,378.52 : x - Step 2: Convert to fraction form
876,352.92/1,209,378.78 = 494,378.52/x - Step 3: Cross multiply
876,352.92x = 1,209,378.78 × 494,378.52 - Step 4: Simplify right side
876,352.92x = 597,890,891,375.81 - Step 5: Solve for x
x = 597,890,891,375.81/876,352.92 - Step 6: Final answer
x = 682,248.99
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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.