Finding the Fourth Proportional to 2,811,928.86, 3,880,455.87 and 1,522,765.26
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Solution
The fourth proportional to 2,811,928.86, 3,880,455.87 and 1,522,765.26 is: 2,101,412.83
Step by Step Solution
- Step 1: Write the proportion equation
2,811,928.86 : 3,880,455.87 = 1,522,765.26 : x - Step 2: Convert to fraction form
2,811,928.86/3,880,455.87 = 1,522,765.26/x - Step 3: Cross multiply
2,811,928.86x = 3,880,455.87 × 1,522,765.26 - Step 4: Simplify right side
2,811,928.86x = 5,909,023,391,799.08 - Step 5: Solve for x
x = 5,909,023,391,799.08/2,811,928.86 - Step 6: Final answer
x = 2,101,412.83
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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.