Finding the Fourth Proportional to 992,564.40, 1,488,117.60 and 393,229.20
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Solution
The fourth proportional to 992,564.40, 1,488,117.60 and 393,229.20 is: 589,554.99
Step by Step Solution
- Step 1: Write the proportion equation
992,564.40 : 1,488,117.60 = 393,229.20 : x - Step 2: Convert to fraction form
992,564.40/1,488,117.60 = 393,229.20/x - Step 3: Cross multiply
992,564.40x = 1,488,117.60 × 393,229.20 - Step 4: Simplify right side
992,564.40x = 585,171,293,353.92 - Step 5: Solve for x
x = 585,171,293,353.92/992,564.40 - Step 6: Final answer
x = 589,554.99
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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.