Finding the Fourth Proportional to 1,147,940.99, 1,721,854.52 and 428,226.62
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Solution
The fourth proportional to 1,147,940.99, 1,721,854.52 and 428,226.62 is: 642,318.67
Step by Step Solution
- Step 1: Write the proportion equation
1,147,940.99 : 1,721,854.52 = 428,226.62 : x - Step 2: Convert to fraction form
1,147,940.99/1,721,854.52 = 428,226.62/x - Step 3: Cross multiply
1,147,940.99x = 1,721,854.52 × 428,226.62 - Step 4: Simplify right side
1,147,940.99x = 737,343,930,480.92 - Step 5: Solve for x
x = 737,343,930,480.92/1,147,940.99 - Step 6: Final answer
x = 642,318.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.