Finding the Fourth Proportional to 405,943.11, 608,991.21 and 125,394.75
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Solution
The fourth proportional to 405,943.11, 608,991.21 and 125,394.75 is: 188,115.77
Step by Step Solution
- Step 1: Write the proportion equation
405,943.11 : 608,991.21 = 125,394.75 : x - Step 2: Convert to fraction form
405,943.11/608,991.21 = 125,394.75/x - Step 3: Cross multiply
405,943.11x = 608,991.21 × 125,394.75 - Step 4: Simplify right side
405,943.11x = 76,364,300,530.15 - Step 5: Solve for x
x = 76,364,300,530.15/405,943.11 - Step 6: Final answer
x = 188,115.77
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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.