Finding the Fourth Proportional to 818,369.76, 1,129,305.84 and 450,775.44
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Solution
The fourth proportional to 818,369.76, 1,129,305.84 and 450,775.44 is: 622,045.63
Step by Step Solution
- Step 1: Write the proportion equation
818,369.76 : 1,129,305.84 = 450,775.44 : x - Step 2: Convert to fraction form
818,369.76/1,129,305.84 = 450,775.44/x - Step 3: Cross multiply
818,369.76x = 1,129,305.84 × 450,775.44 - Step 4: Simplify right side
818,369.76x = 509,063,336,920.57 - Step 5: Solve for x
x = 509,063,336,920.57/818,369.76 - Step 6: Final answer
x = 622,045.63
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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.