Finding the Fourth Proportional to 633,965.40, 874,961.84 and 392,325.76
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Solution
The fourth proportional to 633,965.40, 874,961.84 and 392,325.76 is: 541,464.99
Step by Step Solution
- Step 1: Write the proportion equation
633,965.40 : 874,961.84 = 392,325.76 : x - Step 2: Convert to fraction form
633,965.40/874,961.84 = 392,325.76/x - Step 3: Cross multiply
633,965.40x = 874,961.84 × 392,325.76 - Step 4: Simplify right side
633,965.40x = 343,270,068,849.00 - Step 5: Solve for x
x = 343,270,068,849.00/633,965.40 - Step 6: Final answer
x = 541,464.99
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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.