Finding the Fourth Proportional to 818,798.57, 1,129,926.97 and 456,214.63
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Solution
The fourth proportional to 818,798.57, 1,129,926.97 and 456,214.63 is: 629,567.79
Step by Step Solution
- Step 1: Write the proportion equation
818,798.57 : 1,129,926.97 = 456,214.63 : x - Step 2: Convert to fraction form
818,798.57/1,129,926.97 = 456,214.63/x - Step 3: Cross multiply
818,798.57x = 1,129,926.97 × 456,214.63 - Step 4: Simplify right side
818,798.57x = 515,489,211,843.43 - Step 5: Solve for x
x = 515,489,211,843.43/818,798.57 - Step 6: Final answer
x = 629,567.79
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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.