Finding the Fourth Proportional to 529,532.86, 730,760.19 and 287,815.99
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Solution
The fourth proportional to 529,532.86, 730,760.19 and 287,815.99 is: 397,188.70
Step by Step Solution
- Step 1: Write the proportion equation
529,532.86 : 730,760.19 = 287,815.99 : x - Step 2: Convert to fraction form
529,532.86/730,760.19 = 287,815.99/x - Step 3: Cross multiply
529,532.86x = 730,760.19 × 287,815.99 - Step 4: Simplify right side
529,532.86x = 210,324,467,537.44 - Step 5: Solve for x
x = 210,324,467,537.44/529,532.86 - Step 6: Final answer
x = 397,188.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.