Finding the Fourth Proportional to 804,568.70, 1,207,630.65 and 489,640.70
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Solution
The fourth proportional to 804,568.70, 1,207,630.65 and 489,640.70 is: 734,934.28
Step by Step Solution
- Step 1: Write the proportion equation
804,568.70 : 1,207,630.65 = 489,640.70 : x - Step 2: Convert to fraction form
804,568.70/1,207,630.65 = 489,640.70/x - Step 3: Cross multiply
804,568.70x = 1,207,630.65 × 489,640.70 - Step 4: Simplify right side
804,568.70x = 591,305,116,807.46 - Step 5: Solve for x
x = 591,305,116,807.46/804,568.70 - Step 6: Final answer
x = 734,934.28
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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.