Finding the Fourth Proportional to 815,518.53, 1,125,429.48 and 448,011.12
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Solution
The fourth proportional to 815,518.53, 1,125,429.48 and 448,011.12 is: 618,262.99
Step by Step Solution
- Step 1: Write the proportion equation
815,518.53 : 1,125,429.48 = 448,011.12 : x - Step 2: Convert to fraction form
815,518.53/1,125,429.48 = 448,011.12/x - Step 3: Cross multiply
815,518.53x = 1,125,429.48 × 448,011.12 - Step 4: Simplify right side
815,518.53x = 504,204,921,815.82 - Step 5: Solve for x
x = 504,204,921,815.82/815,518.53 - Step 6: Final answer
x = 618,262.99
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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.