Finding the Fourth Proportional to 1,638,318.10, 2,457,477.15 and 1,491,351.70
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Solution
The fourth proportional to 1,638,318.10, 2,457,477.15 and 1,491,351.70 is: 2,237,027.55
Step by Step Solution
- Step 1: Write the proportion equation
1,638,318.10 : 2,457,477.15 = 1,491,351.70 : x - Step 2: Convert to fraction form
1,638,318.10/2,457,477.15 = 1,491,351.70/x - Step 3: Cross multiply
1,638,318.10x = 2,457,477.15 × 1,491,351.70 - Step 4: Simplify right side
1,638,318.10x = 3,664,962,725,363.66 - Step 5: Solve for x
x = 3,664,962,725,363.66/1,638,318.10 - Step 6: Final answer
x = 2,237,027.55
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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.