Finding the Fourth Proportional to 618,821.40, 853,958.14 and 343,177.65
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Solution
The fourth proportional to 618,821.40, 853,958.14 and 343,177.65 is: 473,576.62
Step by Step Solution
- Step 1: Write the proportion equation
618,821.40 : 853,958.14 = 343,177.65 : x - Step 2: Convert to fraction form
618,821.40/853,958.14 = 343,177.65/x - Step 3: Cross multiply
618,821.40x = 853,958.14 × 343,177.65 - Step 4: Simplify right side
618,821.40x = 293,059,347,683.57 - Step 5: Solve for x
x = 293,059,347,683.57/618,821.40 - Step 6: Final answer
x = 473,576.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.