Finding the Fourth Proportional to 706,138.56, 1,058,611.20 and 306,477.12
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Solution
The fourth proportional to 706,138.56, 1,058,611.20 and 306,477.12 is: 459,456.73
Step by Step Solution
- Step 1: Write the proportion equation
706,138.56 : 1,058,611.20 = 306,477.12 : x - Step 2: Convert to fraction form
706,138.56/1,058,611.20 = 306,477.12/x - Step 3: Cross multiply
706,138.56x = 1,058,611.20 × 306,477.12 - Step 4: Simplify right side
706,138.56x = 324,440,111,775.74 - Step 5: Solve for x
x = 324,440,111,775.74/706,138.56 - Step 6: Final answer
x = 459,456.73
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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.