Finding the Fourth Proportional to 494,694.72, 742,158.56 and 393,874.08
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Solution
The fourth proportional to 494,694.72, 742,158.56 and 393,874.08 is: 590,903.86
Step by Step Solution
- Step 1: Write the proportion equation
494,694.72 : 742,158.56 = 393,874.08 : x - Step 2: Convert to fraction form
494,694.72/742,158.56 = 393,874.08/x - Step 3: Cross multiply
494,694.72x = 742,158.56 × 393,874.08 - Step 4: Simplify right side
494,694.72x = 292,317,020,034.13 - Step 5: Solve for x
x = 292,317,020,034.13/494,694.72 - Step 6: Final answer
x = 590,903.86
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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.