Finding the Fourth Proportional to 329,395.68, 452,820.78 and 283,286.70
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Solution
The fourth proportional to 329,395.68, 452,820.78 and 283,286.70 is: 389,434.69
Step by Step Solution
- Step 1: Write the proportion equation
329,395.68 : 452,820.78 = 283,286.70 : x - Step 2: Convert to fraction form
329,395.68/452,820.78 = 283,286.70/x - Step 3: Cross multiply
329,395.68x = 452,820.78 × 283,286.70 - Step 4: Simplify right side
329,395.68x = 128,278,104,457.63 - Step 5: Solve for x
x = 128,278,104,457.63/329,395.68 - Step 6: Final answer
x = 389,434.69
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.