Finding the Fourth Proportional to 639,523.99, 882,545.93 and 353,046.43
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Solution
The fourth proportional to 639,523.99, 882,545.93 and 353,046.43 is: 487,205.63
Step by Step Solution
- Step 1: Write the proportion equation
639,523.99 : 882,545.93 = 353,046.43 : x - Step 2: Convert to fraction form
639,523.99/882,545.93 = 353,046.43/x - Step 3: Cross multiply
639,523.99x = 882,545.93 × 353,046.43 - Step 4: Simplify right side
639,523.99x = 311,579,689,897.53 - Step 5: Solve for x
x = 311,579,689,897.53/639,523.99 - Step 6: Final answer
x = 487,205.63
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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.