Finding the Fourth Proportional to 392,579.80, 588,869.70 and 366,335.80
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Solution
The fourth proportional to 392,579.80, 588,869.70 and 366,335.80 is: 549,503.70
Step by Step Solution
- Step 1: Write the proportion equation
392,579.80 : 588,869.70 = 366,335.80 : x - Step 2: Convert to fraction form
392,579.80/588,869.70 = 366,335.80/x - Step 3: Cross multiply
392,579.80x = 588,869.70 × 366,335.80 - Step 4: Simplify right side
392,579.80x = 215,724,052,645.26 - Step 5: Solve for x
x = 215,724,052,645.26/392,579.80 - Step 6: Final answer
x = 549,503.70
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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.