Finding the Fourth Proportional to 616,824.80, 851,178.84 and 344,915.12
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Solution
The fourth proportional to 616,824.80, 851,178.84 and 344,915.12 is: 475,960.84
Step by Step Solution
- Step 1: Write the proportion equation
616,824.80 : 851,178.84 = 344,915.12 : x - Step 2: Convert to fraction form
616,824.80/851,178.84 = 344,915.12/x - Step 3: Cross multiply
616,824.80x = 851,178.84 × 344,915.12 - Step 4: Simplify right side
616,824.80x = 293,584,451,740.06 - Step 5: Solve for x
x = 293,584,451,740.06/616,824.80 - Step 6: Final answer
x = 475,960.84
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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.