Finding the Fourth Proportional to 815,474.80, 1,125,318.79 and 488,968.02
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Solution
The fourth proportional to 815,474.80, 1,125,318.79 and 488,968.02 is: 674,754.03
Step by Step Solution
- Step 1: Write the proportion equation
815,474.80 : 1,125,318.79 = 488,968.02 : x - Step 2: Convert to fraction form
815,474.80/1,125,318.79 = 488,968.02/x - Step 3: Cross multiply
815,474.80x = 1,125,318.79 × 488,968.02 - Step 4: Simplify right side
815,474.80x = 550,244,904,309.16 - Step 5: Solve for x
x = 550,244,904,309.16/815,474.80 - Step 6: Final answer
x = 674,754.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.