Finding the Fourth Proportional to 717,539.40, 1,074,980.70 and 418,163.40
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Solution
The fourth proportional to 717,539.40, 1,074,980.70 and 418,163.40 is: 626,470.94
Step by Step Solution
- Step 1: Write the proportion equation
717,539.40 : 1,074,980.70 = 418,163.40 : x - Step 2: Convert to fraction form
717,539.40/1,074,980.70 = 418,163.40/x - Step 3: Cross multiply
717,539.40x = 1,074,980.70 × 418,163.40 - Step 4: Simplify right side
717,539.40x = 449,517,584,446.38 - Step 5: Solve for x
x = 449,517,584,446.38/717,539.40 - Step 6: Final answer
x = 626,470.94
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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.