Finding the Fourth Proportional to 734,634.40, 1,013,717.67 and 412,379.95
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Solution
The fourth proportional to 734,634.40, 1,013,717.67 and 412,379.95 is: 569,040.65
Step by Step Solution
- Step 1: Write the proportion equation
734,634.40 : 1,013,717.67 = 412,379.95 : x - Step 2: Convert to fraction form
734,634.40/1,013,717.67 = 412,379.95/x - Step 3: Cross multiply
734,634.40x = 1,013,717.67 × 412,379.95 - Step 4: Simplify right side
734,634.40x = 418,036,837,000.13 - Step 5: Solve for x
x = 418,036,837,000.13/734,634.40 - Step 6: Final answer
x = 569,040.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.