Finding the Fourth Proportional to 1,213,979.26, 1,675,291.72 and 670,115.41
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Solution
The fourth proportional to 1,213,979.26, 1,675,291.72 and 670,115.41 is: 924,759.45
Step by Step Solution
- Step 1: Write the proportion equation
1,213,979.26 : 1,675,291.72 = 670,115.41 : x - Step 2: Convert to fraction form
1,213,979.26/1,675,291.72 = 670,115.41/x - Step 3: Cross multiply
1,213,979.26x = 1,675,291.72 × 670,115.41 - Step 4: Simplify right side
1,213,979.26x = 1,122,638,797,817.41 - Step 5: Solve for x
x = 1,122,638,797,817.41/1,213,979.26 - Step 6: Final answer
x = 924,759.45
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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.