Finding the Fourth Proportional to 2,120,297.20, 2,918,623.20 and 1,847,896.84
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Solution
The fourth proportional to 2,120,297.20, 2,918,623.20 and 1,847,896.84 is: 2,543,659.72
Step by Step Solution
- Step 1: Write the proportion equation
2,120,297.20 : 2,918,623.20 = 1,847,896.84 : x - Step 2: Convert to fraction form
2,120,297.20/2,918,623.20 = 1,847,896.84/x - Step 3: Cross multiply
2,120,297.20x = 2,918,623.20 × 1,847,896.84 - Step 4: Simplify right side
2,120,297.20x = 5,393,314,588,430.69 - Step 5: Solve for x
x = 5,393,314,588,430.69/2,120,297.20 - Step 6: Final answer
x = 2,543,659.72
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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.