Finding the Fourth Proportional to 790,873.97, 1,091,404.41 and 428,296.71
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Solution
The fourth proportional to 790,873.97, 1,091,404.41 and 428,296.71 is: 591,048.56
Step by Step Solution
- Step 1: Write the proportion equation
790,873.97 : 1,091,404.41 = 428,296.71 : x - Step 2: Convert to fraction form
790,873.97/1,091,404.41 = 428,296.71/x - Step 3: Cross multiply
790,873.97x = 1,091,404.41 × 428,296.71 - Step 4: Simplify right side
790,873.97x = 467,444,918,082.49 - Step 5: Solve for x
x = 467,444,918,082.49/790,873.97 - Step 6: Final answer
x = 591,048.56
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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.