Finding the Fourth Proportional to 481,790.70, 722,394.45 and 215,501.58
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Solution
The fourth proportional to 481,790.70, 722,394.45 and 215,501.58 is: 323,121.94
Step by Step Solution
- Step 1: Write the proportion equation
481,790.70 : 722,394.45 = 215,501.58 : x - Step 2: Convert to fraction form
481,790.70/722,394.45 = 215,501.58/x - Step 3: Cross multiply
481,790.70x = 722,394.45 × 215,501.58 - Step 4: Simplify right side
481,790.70x = 155,677,145,358.23 - Step 5: Solve for x
x = 155,677,145,358.23/481,790.70 - Step 6: Final answer
x = 323,121.94
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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.