Finding the Fourth Proportional to 780,442.05, 1,170,636.34 and 330,873.42
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Solution
The fourth proportional to 780,442.05, 1,170,636.34 and 330,873.42 is: 496,298.80
Step by Step Solution
- Step 1: Write the proportion equation
780,442.05 : 1,170,636.34 = 330,873.42 : x - Step 2: Convert to fraction form
780,442.05/1,170,636.34 = 330,873.42/x - Step 3: Cross multiply
780,442.05x = 1,170,636.34 × 330,873.42 - Step 4: Simplify right side
780,442.05x = 387,332,449,392.08 - Step 5: Solve for x
x = 387,332,449,392.08/780,442.05 - Step 6: Final answer
x = 496,298.80
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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.