Finding the Fourth Proportional to 412,757.68, 619,136.64 and 272,483.50
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Solution
The fourth proportional to 412,757.68, 619,136.64 and 272,483.50 is: 408,725.33
Step by Step Solution
- Step 1: Write the proportion equation
412,757.68 : 619,136.64 = 272,483.50 : x - Step 2: Convert to fraction form
412,757.68/619,136.64 = 272,483.50/x - Step 3: Cross multiply
412,757.68x = 619,136.64 × 272,483.50 - Step 4: Simplify right side
412,757.68x = 168,704,518,645.44 - Step 5: Solve for x
x = 168,704,518,645.44/412,757.68 - Step 6: Final answer
x = 408,725.33
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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.