Finding the Fourth Proportional to 391,204.91, 586,045.97 and 288,435.05
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Solution
The fourth proportional to 391,204.91, 586,045.97 and 288,435.05 is: 432,091.19
Step by Step Solution
- Step 1: Write the proportion equation
391,204.91 : 586,045.97 = 288,435.05 : x - Step 2: Convert to fraction form
391,204.91/586,045.97 = 288,435.05/x - Step 3: Cross multiply
391,204.91x = 586,045.97 × 288,435.05 - Step 4: Simplify right side
391,204.91x = 169,036,197,566.15 - Step 5: Solve for x
x = 169,036,197,566.15/391,204.91 - Step 6: Final answer
x = 432,091.19
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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.