Finding the Fourth Proportional to 442,961.80, 664,442.70 and 416,717.80
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Solution
The fourth proportional to 442,961.80, 664,442.70 and 416,717.80 is: 625,076.70
Step by Step Solution
- Step 1: Write the proportion equation
442,961.80 : 664,442.70 = 416,717.80 : x - Step 2: Convert to fraction form
442,961.80/664,442.70 = 416,717.80/x - Step 3: Cross multiply
442,961.80x = 664,442.70 × 416,717.80 - Step 4: Simplify right side
442,961.80x = 276,885,100,170.06 - Step 5: Solve for x
x = 276,885,100,170.06/442,961.80 - Step 6: Final answer
x = 625,076.70
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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.