Finding the Fourth Proportional to 567,218.94, 782,778.84 and 312,586.53
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Solution
The fourth proportional to 567,218.94, 782,778.84 and 312,586.53 is: 431,378.62
Step by Step Solution
- Step 1: Write the proportion equation
567,218.94 : 782,778.84 = 312,586.53 : x - Step 2: Convert to fraction form
567,218.94/782,778.84 = 312,586.53/x - Step 3: Cross multiply
567,218.94x = 782,778.84 × 312,586.53 - Step 4: Simplify right side
567,218.94x = 244,686,121,353.03 - Step 5: Solve for x
x = 244,686,121,353.03/567,218.94 - Step 6: Final answer
x = 431,378.62
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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.