Finding the Fourth Proportional to 527,357.76, 727,627.72 and 312,460.68
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Solution
The fourth proportional to 527,357.76, 727,627.72 and 312,460.68 is: 431,121.09
Step by Step Solution
- Step 1: Write the proportion equation
527,357.76 : 727,627.72 = 312,460.68 : x - Step 2: Convert to fraction form
527,357.76/727,627.72 = 312,460.68/x - Step 3: Cross multiply
527,357.76x = 727,627.72 × 312,460.68 - Step 4: Simplify right side
527,357.76x = 227,355,052,178.05 - Step 5: Solve for x
x = 227,355,052,178.05/527,357.76 - Step 6: Final answer
x = 431,121.09
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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.