Finding the Fourth Proportional to 876,512.97, 1,315,359.95 and 343,971.18
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Solution
The fourth proportional to 876,512.97, 1,315,359.95 and 343,971.18 is: 516,188.50
Step by Step Solution
- Step 1: Write the proportion equation
876,512.97 : 1,315,359.95 = 343,971.18 : x - Step 2: Convert to fraction form
876,512.97/1,315,359.95 = 343,971.18/x - Step 3: Cross multiply
876,512.97x = 1,315,359.95 × 343,971.18 - Step 4: Simplify right side
876,512.97x = 452,445,912,406.39 - Step 5: Solve for x
x = 452,445,912,406.39/876,512.97 - Step 6: Final answer
x = 516,188.50
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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.