Finding the Fourth Proportional to 815,425.68, 1,222,598.62 and 389,027.31
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Solution
The fourth proportional to 815,425.68, 1,222,598.62 and 389,027.31 is: 583,283.39
Step by Step Solution
- Step 1: Write the proportion equation
815,425.68 : 1,222,598.62 = 389,027.31 : x - Step 2: Convert to fraction form
815,425.68/1,222,598.62 = 389,027.31/x - Step 3: Cross multiply
815,425.68x = 1,222,598.62 × 389,027.31 - Step 4: Simplify right side
815,425.68x = 475,624,252,348.31 - Step 5: Solve for x
x = 475,624,252,348.31/815,425.68 - Step 6: Final answer
x = 583,283.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.