Finding the Fourth Proportional to 480,977.14, 663,167.10 and 389,192.80
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Solution
The fourth proportional to 480,977.14, 663,167.10 and 389,192.80 is: 536,615.65
Step by Step Solution
- Step 1: Write the proportion equation
480,977.14 : 663,167.10 = 389,192.80 : x - Step 2: Convert to fraction form
480,977.14/663,167.10 = 389,192.80/x - Step 3: Cross multiply
480,977.14x = 663,167.10 × 389,192.80 - Step 4: Simplify right side
480,977.14x = 258,099,860,516.88 - Step 5: Solve for x
x = 258,099,860,516.88/480,977.14 - Step 6: Final answer
x = 536,615.65
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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.