Finding the Fourth Proportional to 1,928,116.70, 2,660,888.13 and 1,101,262.42
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Solution
The fourth proportional to 1,928,116.70, 2,660,888.13 and 1,101,262.42 is: 1,519,791.88
Step by Step Solution
- Step 1: Write the proportion equation
1,928,116.70 : 2,660,888.13 = 1,101,262.42 : x - Step 2: Convert to fraction form
1,928,116.70/2,660,888.13 = 1,101,262.42/x - Step 3: Cross multiply
1,928,116.70x = 2,660,888.13 × 1,101,262.42 - Step 4: Simplify right side
1,928,116.70x = 2,930,336,101,393.07 - Step 5: Solve for x
x = 2,930,336,101,393.07/1,928,116.70 - Step 6: Final answer
x = 1,519,791.88
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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.