Finding the Fourth Proportional to 817,642.11, 1,226,369.70 and 218,649.96
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Solution
The fourth proportional to 817,642.11, 1,226,369.70 and 218,649.96 is: 327,949.95
Step by Step Solution
- Step 1: Write the proportion equation
817,642.11 : 1,226,369.70 = 218,649.96 : x - Step 2: Convert to fraction form
817,642.11/1,226,369.70 = 218,649.96/x - Step 3: Cross multiply
817,642.11x = 1,226,369.70 × 218,649.96 - Step 4: Simplify right side
817,642.11x = 268,145,685,850.21 - Step 5: Solve for x
x = 268,145,685,850.21/817,642.11 - Step 6: Final answer
x = 327,949.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.