Finding the Fourth Proportional to 2,326,979.91, 3,208,584.69 and 1,638,431.67
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Solution
The fourth proportional to 2,326,979.91, 3,208,584.69 and 1,638,431.67 is: 2,259,171.53
Step by Step Solution
- Step 1: Write the proportion equation
2,326,979.91 : 3,208,584.69 = 1,638,431.67 : x - Step 2: Convert to fraction form
2,326,979.91/3,208,584.69 = 1,638,431.67/x - Step 3: Cross multiply
2,326,979.91x = 3,208,584.69 × 1,638,431.67 - Step 4: Simplify right side
2,326,979.91x = 5,257,046,771,973.13 - Step 5: Solve for x
x = 5,257,046,771,973.13/2,326,979.91 - Step 6: Final answer
x = 2,259,171.53
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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.