Finding the Fourth Proportional to 843,145.98, 1,264,721.13 and 344,509.98
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Solution
The fourth proportional to 843,145.98, 1,264,721.13 and 344,509.98 is: 516,765.85
Step by Step Solution
- Step 1: Write the proportion equation
843,145.98 : 1,264,721.13 = 344,509.98 : x - Step 2: Convert to fraction form
843,145.98/1,264,721.13 = 344,509.98/x - Step 3: Cross multiply
843,145.98x = 1,264,721.13 × 344,509.98 - Step 4: Simplify right side
843,145.98x = 435,709,051,201.88 - Step 5: Solve for x
x = 435,709,051,201.88/843,145.98 - Step 6: Final answer
x = 516,765.85
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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.