Finding the Fourth Proportional to 1,542,986.68, 2,128,861.02 and 998,259.88
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Solution
The fourth proportional to 1,542,986.68, 2,128,861.02 and 998,259.88 is: 1,377,300.64
Step by Step Solution
- Step 1: Write the proportion equation
1,542,986.68 : 2,128,861.02 = 998,259.88 : x - Step 2: Convert to fraction form
1,542,986.68/2,128,861.02 = 998,259.88/x - Step 3: Cross multiply
1,542,986.68x = 2,128,861.02 × 998,259.88 - Step 4: Simplify right side
1,542,986.68x = 2,125,156,546,361.88 - Step 5: Solve for x
x = 2,125,156,546,361.88/1,542,986.68 - Step 6: Final answer
x = 1,377,300.64
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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.