Finding the Fourth Proportional to 2,171,313.20, 3,258,136.20 and 909,268.40
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Solution
The fourth proportional to 2,171,313.20, 3,258,136.20 and 909,268.40 is: 1,364,391.05
Step by Step Solution
- Step 1: Write the proportion equation
2,171,313.20 : 3,258,136.20 = 909,268.40 : x - Step 2: Convert to fraction form
2,171,313.20/3,258,136.20 = 909,268.40/x - Step 3: Cross multiply
2,171,313.20x = 3,258,136.20 × 909,268.40 - Step 4: Simplify right side
2,171,313.20x = 2,962,520,289,556.08 - Step 5: Solve for x
x = 2,962,520,289,556.08/2,171,313.20 - Step 6: Final answer
x = 1,364,391.05
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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.