Finding the Fourth Proportional to 447,761.40, 671,642.10 and 306,043.80
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Solution
The fourth proportional to 447,761.40, 671,642.10 and 306,043.80 is: 459,065.70
Step by Step Solution
- Step 1: Write the proportion equation
447,761.40 : 671,642.10 = 306,043.80 : x - Step 2: Convert to fraction form
447,761.40/671,642.10 = 306,043.80/x - Step 3: Cross multiply
447,761.40x = 671,642.10 × 306,043.80 - Step 4: Simplify right side
447,761.40x = 205,551,900,523.98 - Step 5: Solve for x
x = 205,551,900,523.98/447,761.40 - Step 6: Final answer
x = 459,065.70
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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.