Finding the Fourth Proportional to 815,021.87, 1,124,708.09 and 452,436.44
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Solution
The fourth proportional to 815,021.87, 1,124,708.09 and 452,436.44 is: 624,350.02
Step by Step Solution
- Step 1: Write the proportion equation
815,021.87 : 1,124,708.09 = 452,436.44 : x - Step 2: Convert to fraction form
815,021.87/1,124,708.09 = 452,436.44/x - Step 3: Cross multiply
815,021.87x = 1,124,708.09 × 452,436.44 - Step 4: Simplify right side
815,021.87x = 508,858,916,393.08 - Step 5: Solve for x
x = 508,858,916,393.08/815,021.87 - Step 6: Final answer
x = 624,350.02
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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.