Finding the Fourth Proportional to 558,634.12, 770,915.28 and 303,979.84
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Solution
The fourth proportional to 558,634.12, 770,915.28 and 303,979.84 is: 419,492.28
Step by Step Solution
- Step 1: Write the proportion equation
558,634.12 : 770,915.28 = 303,979.84 : x - Step 2: Convert to fraction form
558,634.12/770,915.28 = 303,979.84/x - Step 3: Cross multiply
558,634.12x = 770,915.28 × 303,979.84 - Step 4: Simplify right side
558,634.12x = 234,342,703,467.96 - Step 5: Solve for x
x = 234,342,703,467.96/558,634.12 - Step 6: Final answer
x = 419,492.28
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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.