Finding the Fourth Proportional to 1,267,259.38, 1,900,487.21 and 414,138.02
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Solution
The fourth proportional to 1,267,259.38, 1,900,487.21 and 414,138.02 is: 621,075.69
Step by Step Solution
- Step 1: Write the proportion equation
1,267,259.38 : 1,900,487.21 = 414,138.02 : x - Step 2: Convert to fraction form
1,267,259.38/1,900,487.21 = 414,138.02/x - Step 3: Cross multiply
1,267,259.38x = 1,900,487.21 × 414,138.02 - Step 4: Simplify right side
1,267,259.38x = 787,063,998,611.60 - Step 5: Solve for x
x = 787,063,998,611.60/1,267,259.38 - Step 6: Final answer
x = 621,075.69
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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.