Finding the Fourth Proportional to 949,953.42, 1,310,939.91 and 520,236.54
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Solution
The fourth proportional to 949,953.42, 1,310,939.91 and 520,236.54 is: 717,928.72
Step by Step Solution
- Step 1: Write the proportion equation
949,953.42 : 1,310,939.91 = 520,236.54 : x - Step 2: Convert to fraction form
949,953.42/1,310,939.91 = 520,236.54/x - Step 3: Cross multiply
949,953.42x = 1,310,939.91 × 520,236.54 - Step 4: Simplify right side
949,953.42x = 681,998,842,926.31 - Step 5: Solve for x
x = 681,998,842,926.31/949,953.42 - Step 6: Final answer
x = 717,928.72
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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.