Finding the Fourth Proportional to 2,631,038.47, 3,945,872.65 and 1,113,940.49
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Solution
The fourth proportional to 2,631,038.47, 3,945,872.65 and 1,113,940.49 is: 1,670,620.69
Step by Step Solution
- Step 1: Write the proportion equation
2,631,038.47 : 3,945,872.65 = 1,113,940.49 : x - Step 2: Convert to fraction form
2,631,038.47/3,945,872.65 = 1,113,940.49/x - Step 3: Cross multiply
2,631,038.47x = 3,945,872.65 × 1,113,940.49 - Step 4: Simplify right side
2,631,038.47x = 4,395,467,310,885.06 - Step 5: Solve for x
x = 4,395,467,310,885.06/2,631,038.47 - Step 6: Final answer
x = 1,670,620.69
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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.