Finding the Fourth Proportional to 992,321.04, 1,488,490.68 and 318,403.68
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Solution
The fourth proportional to 992,321.04, 1,488,490.68 and 318,403.68 is: 477,608.45
Step by Step Solution
- Step 1: Write the proportion equation
992,321.04 : 1,488,490.68 = 318,403.68 : x - Step 2: Convert to fraction form
992,321.04/1,488,490.68 = 318,403.68/x - Step 3: Cross multiply
992,321.04x = 1,488,490.68 × 318,403.68 - Step 4: Simplify right side
992,321.04x = 473,940,910,157.70 - Step 5: Solve for x
x = 473,940,910,157.70/992,321.04 - Step 6: Final answer
x = 477,608.45
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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.