Finding the Fourth Proportional to 1,998,195.75, 2,757,575.75 and 1,092,777.75
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Solution
The fourth proportional to 1,998,195.75, 2,757,575.75 and 1,092,777.75 is: 1,508,069.18
Step by Step Solution
- Step 1: Write the proportion equation
1,998,195.75 : 2,757,575.75 = 1,092,777.75 : x - Step 2: Convert to fraction form
1,998,195.75/2,757,575.75 = 1,092,777.75/x - Step 3: Cross multiply
1,998,195.75x = 2,757,575.75 × 1,092,777.75 - Step 4: Simplify right side
1,998,195.75x = 3,013,417,418,075.67 - Step 5: Solve for x
x = 3,013,417,418,075.67/1,998,195.75 - Step 6: Final answer
x = 1,508,069.18
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1.5x scale
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.