Finding the Fourth Proportional to 341,310.78, 509,370.84 and 303,478.20
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Solution
The fourth proportional to 341,310.78, 509,370.84 and 303,478.20 is: 452,909.65
Step by Step Solution
- Step 1: Write the proportion equation
341,310.78 : 509,370.84 = 303,478.20 : x - Step 2: Convert to fraction form
341,310.78/509,370.84 = 303,478.20/x - Step 3: Cross multiply
341,310.78x = 509,370.84 × 303,478.20 - Step 4: Simplify right side
341,310.78x = 154,582,945,655.69 - Step 5: Solve for x
x = 154,582,945,655.69/341,310.78 - Step 6: Final answer
x = 452,909.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.