Finding the Fourth Proportional to 492,775.80, 739,163.70 and 405,295.80
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Solution
The fourth proportional to 492,775.80, 739,163.70 and 405,295.80 is: 607,943.70
Step by Step Solution
- Step 1: Write the proportion equation
492,775.80 : 739,163.70 = 405,295.80 : x - Step 2: Convert to fraction form
492,775.80/739,163.70 = 405,295.80/x - Step 3: Cross multiply
492,775.80x = 739,163.70 × 405,295.80 - Step 4: Simplify right side
492,775.80x = 299,579,943,122.46 - Step 5: Solve for x
x = 299,579,943,122.46/492,775.80 - Step 6: Final answer
x = 607,943.70
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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.