Finding the Fourth Proportional to 494,636.56, 742,071.80 and 393,815.84
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Solution
The fourth proportional to 494,636.56, 742,071.80 and 393,815.84 is: 590,816.88
Step by Step Solution
- Step 1: Write the proportion equation
494,636.56 : 742,071.80 = 393,815.84 : x - Step 2: Convert to fraction form
494,636.56/742,071.80 = 393,815.84/x - Step 3: Cross multiply
494,636.56x = 742,071.80 × 393,815.84 - Step 4: Simplify right side
494,636.56x = 292,239,629,257.31 - Step 5: Solve for x
x = 292,239,629,257.31/494,636.56 - Step 6: Final answer
x = 590,816.88
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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.