Finding the Fourth Proportional to 810,236.84, 1,118,138.58 and 447,669.09
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Solution
The fourth proportional to 810,236.84, 1,118,138.58 and 447,669.09 is: 617,789.83
Step by Step Solution
- Step 1: Write the proportion equation
810,236.84 : 1,118,138.58 = 447,669.09 : x - Step 2: Convert to fraction form
810,236.84/1,118,138.58 = 447,669.09/x - Step 3: Cross multiply
810,236.84x = 1,118,138.58 × 447,669.09 - Step 4: Simplify right side
810,236.84x = 500,556,080,602.49 - Step 5: Solve for x
x = 500,556,080,602.49/810,236.84 - Step 6: Final answer
x = 617,789.83
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1.5x scale
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.