Finding the Fourth Proportional to 639,217.19, 958,576.54 and 239,640.17
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Solution
The fourth proportional to 639,217.19, 958,576.54 and 239,640.17 is: 359,366.81
Step by Step Solution
- Step 1: Write the proportion equation
639,217.19 : 958,576.54 = 239,640.17 : x - Step 2: Convert to fraction form
639,217.19/958,576.54 = 239,640.17/x - Step 3: Cross multiply
639,217.19x = 958,576.54 × 239,640.17 - Step 4: Simplify right side
639,217.19x = 229,713,439,611.63 - Step 5: Solve for x
x = 229,713,439,611.63/639,217.19 - Step 6: Final answer
x = 359,366.81
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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.