Finding the Fourth Proportional to 1,087,806.42, 1,631,702.79 and 422,958.42
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Solution
The fourth proportional to 1,087,806.42, 1,631,702.79 and 422,958.42 is: 634,434.97
Step by Step Solution
- Step 1: Write the proportion equation
1,087,806.42 : 1,631,702.79 = 422,958.42 : x - Step 2: Convert to fraction form
1,087,806.42/1,631,702.79 = 422,958.42/x - Step 3: Cross multiply
1,087,806.42x = 1,631,702.79 × 422,958.42 - Step 4: Simplify right side
1,087,806.42x = 690,142,433,967.99 - Step 5: Solve for x
x = 690,142,433,967.99/1,087,806.42 - Step 6: Final answer
x = 634,434.97
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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.