Finding the Fourth Proportional to 738,685.80, 1,107,704.70 and 339,193.80
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Solution
The fourth proportional to 738,685.80, 1,107,704.70 and 339,193.80 is: 508,641.92
Step by Step Solution
- Step 1: Write the proportion equation
738,685.80 : 1,107,704.70 = 339,193.80 : x - Step 2: Convert to fraction form
738,685.80/1,107,704.70 = 339,193.80/x - Step 3: Cross multiply
738,685.80x = 1,107,704.70 × 339,193.80 - Step 4: Simplify right side
738,685.80x = 375,726,566,470.86 - Step 5: Solve for x
x = 375,726,566,470.86/738,685.80 - Step 6: Final answer
x = 508,641.92
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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.