Finding the Fourth Proportional to 718,105.34, 990,991.97 and 395,827.80
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Solution
The fourth proportional to 718,105.34, 990,991.97 and 395,827.80 is: 546,246.00
Step by Step Solution
- Step 1: Write the proportion equation
718,105.34 : 990,991.97 = 395,827.80 : x - Step 2: Convert to fraction form
718,105.34/990,991.97 = 395,827.80/x - Step 3: Cross multiply
718,105.34x = 990,991.97 × 395,827.80 - Step 4: Simplify right side
718,105.34x = 392,262,171,302.77 - Step 5: Solve for x
x = 392,262,171,302.77/718,105.34 - Step 6: Final answer
x = 546,246.00
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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.