Finding the Fourth Proportional to 667,346.13, 920,933.09 and 361,415.48
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Solution
The fourth proportional to 667,346.13, 920,933.09 and 361,415.48 is: 498,750.88
Step by Step Solution
- Step 1: Write the proportion equation
667,346.13 : 920,933.09 = 361,415.48 : x - Step 2: Convert to fraction form
667,346.13/920,933.09 = 361,415.48/x - Step 3: Cross multiply
667,346.13x = 920,933.09 × 361,415.48 - Step 4: Simplify right side
667,346.13x = 332,839,468,358.49 - Step 5: Solve for x
x = 332,839,468,358.49/667,346.13 - Step 6: Final answer
x = 498,750.88
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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.