Finding the Fourth Proportional to 642,363.91, 886,491.24 and 355,883.99
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Solution
The fourth proportional to 642,363.91, 886,491.24 and 355,883.99 is: 491,136.00
Step by Step Solution
- Step 1: Write the proportion equation
642,363.91 : 886,491.24 = 355,883.99 : x - Step 2: Convert to fraction form
642,363.91/886,491.24 = 355,883.99/x - Step 3: Cross multiply
642,363.91x = 886,491.24 × 355,883.99 - Step 4: Simplify right side
642,363.91x = 315,488,039,591.25 - Step 5: Solve for x
x = 315,488,039,591.25/642,363.91 - Step 6: Final answer
x = 491,136.00
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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.