Finding the Fourth Proportional to 447,787.74, 671,944.05 and 321,291.66
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Solution
The fourth proportional to 447,787.74, 671,944.05 and 321,291.66 is: 482,125.79
Step by Step Solution
- Step 1: Write the proportion equation
447,787.74 : 671,944.05 = 321,291.66 : x - Step 2: Convert to fraction form
447,787.74/671,944.05 = 321,291.66/x - Step 3: Cross multiply
447,787.74x = 671,944.05 × 321,291.66 - Step 4: Simplify right side
447,787.74x = 215,890,019,251.62 - Step 5: Solve for x
x = 215,890,019,251.62/447,787.74 - Step 6: Final answer
x = 482,125.79
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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.