Finding the Fourth Proportional to 850,787.26, 1,276,205.64 and 318,206.68
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Solution
The fourth proportional to 850,787.26, 1,276,205.64 and 318,206.68 is: 477,319.28
Step by Step Solution
- Step 1: Write the proportion equation
850,787.26 : 1,276,205.64 = 318,206.68 : x - Step 2: Convert to fraction form
850,787.26/1,276,205.64 = 318,206.68/x - Step 3: Cross multiply
850,787.26x = 1,276,205.64 × 318,206.68 - Step 4: Simplify right side
850,787.26x = 406,097,159,701.68 - Step 5: Solve for x
x = 406,097,159,701.68/850,787.26 - Step 6: Final answer
x = 477,319.28
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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.