Finding the Fourth Proportional to 809,457.84, 1,117,198.02 and 482,791.80
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Solution
The fourth proportional to 809,457.84, 1,117,198.02 and 482,791.80 is: 666,339.88
Step by Step Solution
- Step 1: Write the proportion equation
809,457.84 : 1,117,198.02 = 482,791.80 : x - Step 2: Convert to fraction form
809,457.84/1,117,198.02 = 482,791.80/x - Step 3: Cross multiply
809,457.84x = 1,117,198.02 × 482,791.80 - Step 4: Simplify right side
809,457.84x = 539,374,043,032.24 - Step 5: Solve for x
x = 539,374,043,032.24/809,457.84 - Step 6: Final answer
x = 666,339.88
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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.