Finding the Fourth Proportional to 811,704.16, 1,119,897.84 and 489,512.80
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Solution
The fourth proportional to 811,704.16, 1,119,897.84 and 489,512.80 is: 675,374.54
Step by Step Solution
- Step 1: Write the proportion equation
811,704.16 : 1,119,897.84 = 489,512.80 : x - Step 2: Convert to fraction form
811,704.16/1,119,897.84 = 489,512.80/x - Step 3: Cross multiply
811,704.16x = 1,119,897.84 × 489,512.80 - Step 4: Simplify right side
811,704.16x = 548,204,327,372.35 - Step 5: Solve for x
x = 548,204,327,372.35/811,704.16 - Step 6: Final answer
x = 675,374.54
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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.