Finding the Fourth Proportional to 809,756.94, 1,117,458 and 447,205.26
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Solution
The fourth proportional to 809,756.94, 1,117,458 and 447,205.26 is: 617,139.63
Step by Step Solution
- Step 1: Write the proportion equation
809,756.94 : 1,117,458 = 447,205.26 : x - Step 2: Convert to fraction form
809,756.94/1,117,458 = 447,205.26/x - Step 3: Cross multiply
809,756.94x = 1,117,458 × 447,205.26 - Step 4: Simplify right side
809,756.94x = 499,733,095,429.08 - Step 5: Solve for x
x = 499,733,095,429.08/809,756.94 - Step 6: Final answer
x = 617,139.63
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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.