Finding the Fourth Proportional to 2,811,722.86, 3,880,215.23 and 1,571,278.70
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Solution
The fourth proportional to 2,811,722.86, 3,880,215.23 and 1,571,278.70 is: 2,168,385.66
Step by Step Solution
- Step 1: Write the proportion equation
2,811,722.86 : 3,880,215.23 = 1,571,278.70 : x - Step 2: Convert to fraction form
2,811,722.86/3,880,215.23 = 1,571,278.70/x - Step 3: Cross multiply
2,811,722.86x = 3,880,215.23 × 1,571,278.70 - Step 4: Simplify right side
2,811,722.86x = 6,096,899,544,158.75 - Step 5: Solve for x
x = 6,096,899,544,158.75/2,811,722.86 - Step 6: Final answer
x = 2,168,385.66
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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.