Finding the Fourth Proportional to 391,501.18, 539,757.57 and 282,514.06
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Solution
The fourth proportional to 391,501.18, 539,757.57 and 282,514.06 is: 389,498.45
Step by Step Solution
- Step 1: Write the proportion equation
391,501.18 : 539,757.57 = 282,514.06 : x - Step 2: Convert to fraction form
391,501.18/539,757.57 = 282,514.06/x - Step 3: Cross multiply
391,501.18x = 539,757.57 × 282,514.06 - Step 4: Simplify right side
391,501.18x = 152,489,102,516.43 - Step 5: Solve for x
x = 152,489,102,516.43/391,501.18 - Step 6: Final answer
x = 389,498.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.