Finding the Fourth Proportional to 1,239,974.20, 1,860,030.59 and 387,163.63
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Solution
The fourth proportional to 1,239,974.20, 1,860,030.59 and 387,163.63 is: 580,767.08
Step by Step Solution
- Step 1: Write the proportion equation
1,239,974.20 : 1,860,030.59 = 387,163.63 : x - Step 2: Convert to fraction form
1,239,974.20/1,860,030.59 = 387,163.63/x - Step 3: Cross multiply
1,239,974.20x = 1,860,030.59 × 387,163.63 - Step 4: Simplify right side
1,239,974.20x = 720,136,188,549.55 - Step 5: Solve for x
x = 720,136,188,549.55/1,239,974.20 - Step 6: Final answer
x = 580,767.08
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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.