Finding the Fourth Proportional to 2,560,989.90, 3,836,430.45 and 1,299,722.70
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Solution
The fourth proportional to 2,560,989.90, 3,836,430.45 and 1,299,722.70 is: 1,947,018.90
Step by Step Solution
- Step 1: Write the proportion equation
2,560,989.90 : 3,836,430.45 = 1,299,722.70 : x - Step 2: Convert to fraction form
2,560,989.90/3,836,430.45 = 1,299,722.70/x - Step 3: Cross multiply
2,560,989.90x = 3,836,430.45 × 1,299,722.70 - Step 4: Simplify right side
2,560,989.90x = 4,986,295,742,836.22 - Step 5: Solve for x
x = 4,986,295,742,836.22/2,560,989.90 - Step 6: Final answer
x = 1,947,018.90
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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.