Finding the Fourth Proportional to 817,872.75, 1,226,920.91 and 285,313.95
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Solution
The fourth proportional to 817,872.75, 1,226,920.91 and 285,313.95 is: 428,009.92
Step by Step Solution
- Step 1: Write the proportion equation
817,872.75 : 1,226,920.91 = 285,313.95 : x - Step 2: Convert to fraction form
817,872.75/1,226,920.91 = 285,313.95/x - Step 3: Cross multiply
817,872.75x = 1,226,920.91 × 285,313.95 - Step 4: Simplify right side
817,872.75x = 350,057,649,743.13 - Step 5: Solve for x
x = 350,057,649,743.13/817,872.75 - Step 6: Final answer
x = 428,009.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.