Finding the Fourth Proportional to 639,205.44, 958,558.98 and 239,628.20
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Solution
The fourth proportional to 639,205.44, 958,558.98 and 239,628.20 is: 359,348.88
Step by Step Solution
- Step 1: Write the proportion equation
639,205.44 : 958,558.98 = 239,628.20 : x - Step 2: Convert to fraction form
639,205.44/958,558.98 = 239,628.20/x - Step 3: Cross multiply
639,205.44x = 958,558.98 × 239,628.20 - Step 4: Simplify right side
639,205.44x = 229,697,758,178.44 - Step 5: Solve for x
x = 229,697,758,178.44/639,205.44 - Step 6: Final answer
x = 359,348.88
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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.