Finding the Fourth Proportional to 556,638.48, 768,161.88 and 301,990.68
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Solution
The fourth proportional to 556,638.48, 768,161.88 and 301,990.68 is: 416,747.56
Step by Step Solution
- Step 1: Write the proportion equation
556,638.48 : 768,161.88 = 301,990.68 : x - Step 2: Convert to fraction form
556,638.48/768,161.88 = 301,990.68/x - Step 3: Cross multiply
556,638.48x = 768,161.88 × 301,990.68 - Step 4: Simplify right side
556,638.48x = 231,977,728,491.28 - Step 5: Solve for x
x = 231,977,728,491.28/556,638.48 - Step 6: Final answer
x = 416,747.56
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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.