Finding the Fourth Proportional to 773,743.80, 1,160,615.70 and 680,431.80
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Solution
The fourth proportional to 773,743.80, 1,160,615.70 and 680,431.80 is: 1,020,647.70
Step by Step Solution
- Step 1: Write the proportion equation
773,743.80 : 1,160,615.70 = 680,431.80 : x - Step 2: Convert to fraction form
773,743.80/1,160,615.70 = 680,431.80/x - Step 3: Cross multiply
773,743.80x = 1,160,615.70 × 680,431.80 - Step 4: Simplify right side
773,743.80x = 789,719,829,859.26 - Step 5: Solve for x
x = 789,719,829,859.26/773,743.80 - Step 6: Final answer
x = 1,020,647.70
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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.