Finding the Fourth Proportional to 2,129,481.28, 2,938,639.26 and 1,162,564.84
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Solution
The fourth proportional to 2,129,481.28, 2,938,639.26 and 1,162,564.84 is: 1,604,314.96
Step by Step Solution
- Step 1: Write the proportion equation
2,129,481.28 : 2,938,639.26 = 1,162,564.84 : x - Step 2: Convert to fraction form
2,129,481.28/2,938,639.26 = 1,162,564.84/x - Step 3: Cross multiply
2,129,481.28x = 2,938,639.26 × 1,162,564.84 - Step 4: Simplify right side
2,129,481.28x = 3,416,358,681,119.62 - Step 5: Solve for x
x = 3,416,358,681,119.62/2,129,481.28 - Step 6: Final answer
x = 1,604,314.96
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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.