Finding the Fourth Proportional to 639,265.93, 958,649.66 and 239,688.49
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Solution
The fourth proportional to 639,265.93, 958,649.66 and 239,688.49 is: 359,439.28
Step by Step Solution
- Step 1: Write the proportion equation
639,265.93 : 958,649.66 = 239,688.49 : x - Step 2: Convert to fraction form
639,265.93/958,649.66 = 239,688.49/x - Step 3: Cross multiply
639,265.93x = 958,649.66 × 239,688.49 - Step 4: Simplify right side
639,265.93x = 229,777,288,245.97 - Step 5: Solve for x
x = 229,777,288,245.97/639,265.93 - Step 6: Final answer
x = 359,439.28
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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.