Finding the Fourth Proportional to 386,474.41, 578,795.30 and 306,254.44
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Solution
The fourth proportional to 386,474.41, 578,795.30 and 306,254.44 is: 458,655.54
Step by Step Solution
- Step 1: Write the proportion equation
386,474.41 : 578,795.30 = 306,254.44 : x - Step 2: Convert to fraction form
386,474.41/578,795.30 = 306,254.44/x - Step 3: Cross multiply
386,474.41x = 578,795.30 × 306,254.44 - Step 4: Simplify right side
386,474.41x = 177,258,630,476.13 - Step 5: Solve for x
x = 177,258,630,476.13/386,474.41 - Step 6: Final answer
x = 458,655.54
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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.