Finding the Fourth Proportional to 449,957.76, 621,452.22 and 306,468.96
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Solution
The fourth proportional to 449,957.76, 621,452.22 and 306,468.96 is: 423,274.88
Step by Step Solution
- Step 1: Write the proportion equation
449,957.76 : 621,452.22 = 306,468.96 : x - Step 2: Convert to fraction form
449,957.76/621,452.22 = 306,468.96/x - Step 3: Cross multiply
449,957.76x = 621,452.22 × 306,468.96 - Step 4: Simplify right side
449,957.76x = 190,455,815,553.09 - Step 5: Solve for x
x = 190,455,815,553.09/449,957.76 - Step 6: Final answer
x = 423,274.88
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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.