Finding the Fourth Proportional to 892,649.63, 1,231,822.69 and 484,742.75
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Solution
The fourth proportional to 892,649.63, 1,231,822.69 and 484,742.75 is: 668,926.63
Step by Step Solution
- Step 1: Write the proportion equation
892,649.63 : 1,231,822.69 = 484,742.75 : x - Step 2: Convert to fraction form
892,649.63/1,231,822.69 = 484,742.75/x - Step 3: Cross multiply
892,649.63x = 1,231,822.69 × 484,742.75 - Step 4: Simplify right side
892,649.63x = 597,117,110,892.03 - Step 5: Solve for x
x = 597,117,110,892.03/892,649.63 - Step 6: Final answer
x = 668,926.63
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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.