Finding the Fourth Proportional to 1,393,564.55, 2,090,554.61 and 494,930.79
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Solution
The fourth proportional to 1,393,564.55, 2,090,554.61 and 494,930.79 is: 742,469.98
Step by Step Solution
- Step 1: Write the proportion equation
1,393,564.55 : 2,090,554.61 = 494,930.79 : x - Step 2: Convert to fraction form
1,393,564.55/2,090,554.61 = 494,930.79/x - Step 3: Cross multiply
1,393,564.55x = 2,090,554.61 × 494,930.79 - Step 4: Simplify right side
1,393,564.55x = 1,034,679,842,190.79 - Step 5: Solve for x
x = 1,034,679,842,190.79/1,393,564.55 - Step 6: Final answer
x = 742,469.98
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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.