Finding the Fourth Proportional to 876,729.44, 1,209,874.68 and 489,550.84
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Solution
The fourth proportional to 876,729.44, 1,209,874.68 and 489,550.84 is: 675,573.49
Step by Step Solution
- Step 1: Write the proportion equation
876,729.44 : 1,209,874.68 = 489,550.84 : x - Step 2: Convert to fraction form
876,729.44/1,209,874.68 = 489,550.84/x - Step 3: Cross multiply
876,729.44x = 1,209,874.68 × 489,550.84 - Step 4: Simplify right side
876,729.44x = 592,295,165,888.73 - Step 5: Solve for x
x = 592,295,165,888.73/876,729.44 - Step 6: Final answer
x = 675,573.49
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1.5x scale
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.