Finding the Fourth Proportional to 743,637.21, 1,115,446.91 and 270,318.57
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Solution
The fourth proportional to 743,637.21, 1,115,446.91 and 270,318.57 is: 405,474.62
Step by Step Solution
- Step 1: Write the proportion equation
743,637.21 : 1,115,446.91 = 270,318.57 : x - Step 2: Convert to fraction form
743,637.21/1,115,446.91 = 270,318.57/x - Step 3: Cross multiply
743,637.21x = 1,115,446.91 × 270,318.57 - Step 4: Simplify right side
743,637.21x = 301,526,012,270.53 - Step 5: Solve for x
x = 301,526,012,270.53/743,637.21 - Step 6: Final answer
x = 405,474.62
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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.