Finding the Fourth Proportional to 1,988,434.24, 2,743,101.12 and 1,344,079.36
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Solution
The fourth proportional to 1,988,434.24, 2,743,101.12 and 1,344,079.36 is: 1,854,195.39
Step by Step Solution
- Step 1: Write the proportion equation
1,988,434.24 : 2,743,101.12 = 1,344,079.36 : x - Step 2: Convert to fraction form
1,988,434.24/2,743,101.12 = 1,344,079.36/x - Step 3: Cross multiply
1,988,434.24x = 2,743,101.12 × 1,344,079.36 - Step 4: Simplify right side
1,988,434.24x = 3,686,945,597,784.88 - Step 5: Solve for x
x = 3,686,945,597,784.88/1,988,434.24 - Step 6: Final answer
x = 1,854,195.39
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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.