Finding the Fourth Proportional to 509,560.20, 703,232.28 and 305,618.94
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Solution
The fourth proportional to 509,560.20, 703,232.28 and 305,618.94 is: 421,777.65
Step by Step Solution
- Step 1: Write the proportion equation
509,560.20 : 703,232.28 = 305,618.94 : x - Step 2: Convert to fraction form
509,560.20/703,232.28 = 305,618.94/x - Step 3: Cross multiply
509,560.20x = 703,232.28 × 305,618.94 - Step 4: Simplify right side
509,560.20x = 214,921,103,987.38 - Step 5: Solve for x
x = 214,921,103,987.38/509,560.20 - Step 6: Final answer
x = 421,777.65
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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.