Finding the Fourth Proportional to 489,349.49, 674,991.50 and 353,582.69
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Solution
The fourth proportional to 489,349.49, 674,991.50 and 353,582.69 is: 487,719.54
Step by Step Solution
- Step 1: Write the proportion equation
489,349.49 : 674,991.50 = 353,582.69 : x - Step 2: Convert to fraction form
489,349.49/674,991.50 = 353,582.69/x - Step 3: Cross multiply
489,349.49x = 674,991.50 × 353,582.69 - Step 4: Simplify right side
489,349.49x = 238,665,305,154.26 - Step 5: Solve for x
x = 238,665,305,154.26/489,349.49 - Step 6: Final answer
x = 487,719.54
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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.