Finding the Fourth Proportional to 1,988,306.28, 2,743,768.42 and 1,128,753
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Solution
The fourth proportional to 1,988,306.28, 2,743,768.42 and 1,128,753 is: 1,557,625.64
Step by Step Solution
- Step 1: Write the proportion equation
1,988,306.28 : 2,743,768.42 = 1,128,753 : x - Step 2: Convert to fraction form
1,988,306.28/2,743,768.42 = 1,128,753/x - Step 3: Cross multiply
1,988,306.28x = 2,743,768.42 × 1,128,753 - Step 4: Simplify right side
1,988,306.28x = 3,097,036,835,380.26 - Step 5: Solve for x
x = 3,097,036,835,380.26/1,988,306.28 - Step 6: Final answer
x = 1,557,625.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.