Finding the Fourth Proportional to 567,390.99, 782,990.22 and 312,765.87
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Solution
The fourth proportional to 567,390.99, 782,990.22 and 312,765.87 is: 431,611.75
Step by Step Solution
- Step 1: Write the proportion equation
567,390.99 : 782,990.22 = 312,765.87 : x - Step 2: Convert to fraction form
567,390.99/782,990.22 = 312,765.87/x - Step 3: Cross multiply
567,390.99x = 782,990.22 × 312,765.87 - Step 4: Simplify right side
567,390.99x = 244,892,617,359.79 - Step 5: Solve for x
x = 244,892,617,359.79/567,390.99 - Step 6: Final answer
x = 431,611.75
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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.