Finding the Fourth Proportional to 1,213,979.51, 1,675,292.06 and 670,115.66
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Solution
The fourth proportional to 1,213,979.51, 1,675,292.06 and 670,115.66 is: 924,759.79
Step by Step Solution
- Step 1: Write the proportion equation
1,213,979.51 : 1,675,292.06 = 670,115.66 : x - Step 2: Convert to fraction form
1,213,979.51/1,675,292.06 = 670,115.66/x - Step 3: Cross multiply
1,213,979.51x = 1,675,292.06 × 670,115.66 - Step 4: Simplify right side
1,213,979.51x = 1,122,639,437,778.49 - Step 5: Solve for x
x = 1,122,639,437,778.49/1,213,979.51 - Step 6: Final answer
x = 924,759.79
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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.