Finding the Fourth Proportional to 858,791.80, 1,288,187.70 and 605,537.20
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Solution
The fourth proportional to 858,791.80, 1,288,187.70 and 605,537.20 is: 908,305.80
Step by Step Solution
- Step 1: Write the proportion equation
858,791.80 : 1,288,187.70 = 605,537.20 : x - Step 2: Convert to fraction form
858,791.80/1,288,187.70 = 605,537.20/x - Step 3: Cross multiply
858,791.80x = 1,288,187.70 × 605,537.20 - Step 4: Simplify right side
858,791.80x = 780,045,572,932.44 - Step 5: Solve for x
x = 780,045,572,932.44/858,791.80 - Step 6: Final answer
x = 908,305.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.