Finding the Fourth Proportional to 687,678.06, 1,031,670.12 and 226,076.88
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Solution
The fourth proportional to 687,678.06, 1,031,670.12 and 226,076.88 is: 339,165.63
Step by Step Solution
- Step 1: Write the proportion equation
687,678.06 : 1,031,670.12 = 226,076.88 : x - Step 2: Convert to fraction form
687,678.06/1,031,670.12 = 226,076.88/x - Step 3: Cross multiply
687,678.06x = 1,031,670.12 × 226,076.88 - Step 4: Simplify right side
687,678.06x = 233,236,761,918.83 - Step 5: Solve for x
x = 233,236,761,918.83/687,678.06 - Step 6: Final answer
x = 339,165.63
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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.