Finding the Fourth Proportional to 396,969.09, 547,819.81 and 215,680.91
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Solution
The fourth proportional to 396,969.09, 547,819.81 and 215,680.91 is: 297,641.00
Step by Step Solution
- Step 1: Write the proportion equation
396,969.09 : 547,819.81 = 215,680.91 : x - Step 2: Convert to fraction form
396,969.09/547,819.81 = 215,680.91/x - Step 3: Cross multiply
396,969.09x = 547,819.81 × 215,680.91 - Step 4: Simplify right side
396,969.09x = 118,154,277,251.13 - Step 5: Solve for x
x = 118,154,277,251.13/396,969.09 - Step 6: Final answer
x = 297,641.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.