Finding the Fourth Proportional to 738,653.34, 1,107,586.17 and 383,309.58
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Solution
The fourth proportional to 738,653.34, 1,107,586.17 and 383,309.58 is: 574,759.99
Step by Step Solution
- Step 1: Write the proportion equation
738,653.34 : 1,107,586.17 = 383,309.58 : x - Step 2: Convert to fraction form
738,653.34/1,107,586.17 = 383,309.58/x - Step 3: Cross multiply
738,653.34x = 1,107,586.17 × 383,309.58 - Step 4: Simplify right side
738,653.34x = 424,548,389,636.51 - Step 5: Solve for x
x = 424,548,389,636.51/738,653.34 - Step 6: Final answer
x = 574,759.99
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1.5x scale
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.