Finding the Fourth Proportional to 509,573.92, 764,378.16 and 135,597.28
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Solution
The fourth proportional to 509,573.92, 764,378.16 and 135,597.28 is: 203,400.52
Step by Step Solution
- Step 1: Write the proportion equation
509,573.92 : 764,378.16 = 135,597.28 : x - Step 2: Convert to fraction form
509,573.92/764,378.16 = 135,597.28/x - Step 3: Cross multiply
509,573.92x = 764,378.16 × 135,597.28 - Step 4: Simplify right side
509,573.92x = 103,647,599,387.41 - Step 5: Solve for x
x = 103,647,599,387.41/509,573.92 - Step 6: Final answer
x = 203,400.52
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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.