Finding the Fourth Proportional to 498,592.88, 687,982.23 and 280,790.09
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Solution
The fourth proportional to 498,592.88, 687,982.23 and 280,790.09 is: 387,447.55
Step by Step Solution
- Step 1: Write the proportion equation
498,592.88 : 687,982.23 = 280,790.09 : x - Step 2: Convert to fraction form
498,592.88/687,982.23 = 280,790.09/x - Step 3: Cross multiply
498,592.88x = 687,982.23 × 280,790.09 - Step 4: Simplify right side
498,592.88x = 193,178,592,280.10 - Step 5: Solve for x
x = 193,178,592,280.10/498,592.88 - Step 6: Final answer
x = 387,447.55
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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.