Finding the Fourth Proportional to 738,354.42, 1,018,929.11 and 398,822.67
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Solution
The fourth proportional to 738,354.42, 1,018,929.11 and 398,822.67 is: 550,375.29
Step by Step Solution
- Step 1: Write the proportion equation
738,354.42 : 1,018,929.11 = 398,822.67 : x - Step 2: Convert to fraction form
738,354.42/1,018,929.11 = 398,822.67/x - Step 3: Cross multiply
738,354.42x = 1,018,929.11 × 398,822.67 - Step 4: Simplify right side
738,354.42x = 406,372,026,196.81 - Step 5: Solve for x
x = 406,372,026,196.81/738,354.42 - Step 6: Final answer
x = 550,375.29
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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.