Finding the Fourth Proportional to 3,617,220.87, 4,991,745.09 and 1,985,656.00
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Solution
The fourth proportional to 3,617,220.87, 4,991,745.09 and 1,985,656.00 is: 2,740,194.46
Step by Step Solution
- Step 1: Write the proportion equation
3,617,220.87 : 4,991,745.09 = 1,985,656.00 : x - Step 2: Convert to fraction form
3,617,220.87/4,991,745.09 = 1,985,656.00/x - Step 3: Cross multiply
3,617,220.87x = 4,991,745.09 × 1,985,656.00 - Step 4: Simplify right side
3,617,220.87x = 9,911,888,563,470.32 - Step 5: Solve for x
x = 9,911,888,563,470.32/3,617,220.87 - Step 6: Final answer
x = 2,740,194.46
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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.