Finding the Fourth Proportional to 386,473.41, 578,793.80 and 306,253.44
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Solution
The fourth proportional to 386,473.41, 578,793.80 and 306,253.44 is: 458,654.05
Step by Step Solution
- Step 1: Write the proportion equation
386,473.41 : 578,793.80 = 306,253.44 : x - Step 2: Convert to fraction form
386,473.41/578,793.80 = 306,253.44/x - Step 3: Cross multiply
386,473.41x = 578,793.80 × 306,253.44 - Step 4: Simplify right side
386,473.41x = 177,257,593,066.31 - Step 5: Solve for x
x = 177,257,593,066.31/386,473.41 - Step 6: Final answer
x = 458,654.05
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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.