Finding the Fourth Proportional to 850,644.36, 1,276,149.60 and 424,409.40
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Solution
The fourth proportional to 850,644.36, 1,276,149.60 and 424,409.40 is: 636,705.43
Step by Step Solution
- Step 1: Write the proportion equation
850,644.36 : 1,276,149.60 = 424,409.40 : x - Step 2: Convert to fraction form
850,644.36/1,276,149.60 = 424,409.40/x - Step 3: Cross multiply
850,644.36x = 1,276,149.60 × 424,409.40 - Step 4: Simplify right side
850,644.36x = 541,609,886,046.24 - Step 5: Solve for x
x = 541,609,886,046.24/850,644.36 - Step 6: Final answer
x = 636,705.43
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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.