Finding the Fourth Proportional to 639,207.19, 958,561.60 and 239,629.94
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Solution
The fourth proportional to 639,207.19, 958,561.60 and 239,629.94 is: 359,351.49
Step by Step Solution
- Step 1: Write the proportion equation
639,207.19 : 958,561.60 = 239,629.94 : x - Step 2: Convert to fraction form
639,207.19/958,561.60 = 239,629.94/x - Step 3: Cross multiply
639,207.19x = 958,561.60 × 239,629.94 - Step 4: Simplify right side
639,207.19x = 229,700,058,694.30 - Step 5: Solve for x
x = 229,700,058,694.30/639,207.19 - Step 6: Final answer
x = 359,351.49
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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.