Finding the Fourth Proportional to 2,927,992.70, 4,040,629.02 and 1,638,832.74
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Solution
The fourth proportional to 2,927,992.70, 4,040,629.02 and 1,638,832.74 is: 2,261,588.68
Step by Step Solution
- Step 1: Write the proportion equation
2,927,992.70 : 4,040,629.02 = 1,638,832.74 : x - Step 2: Convert to fraction form
2,927,992.70/4,040,629.02 = 1,638,832.74/x - Step 3: Cross multiply
2,927,992.70x = 4,040,629.02 × 1,638,832.74 - Step 4: Simplify right side
2,927,992.70x = 6,621,915,128,170.12 - Step 5: Solve for x
x = 6,621,915,128,170.12/2,927,992.70 - Step 6: Final answer
x = 2,261,588.68
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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.