Finding the Fourth Proportional to 1,543,919.28, 2,130,360.56 and 970,553.48
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Solution
The fourth proportional to 1,543,919.28, 2,130,360.56 and 970,553.48 is: 1,339,207.87
Step by Step Solution
- Step 1: Write the proportion equation
1,543,919.28 : 2,130,360.56 = 970,553.48 : x - Step 2: Convert to fraction form
1,543,919.28/2,130,360.56 = 970,553.48/x - Step 3: Cross multiply
1,543,919.28x = 2,130,360.56 × 970,553.48 - Step 4: Simplify right side
1,543,919.28x = 2,067,628,855,162.75 - Step 5: Solve for x
x = 2,067,628,855,162.75/1,543,919.28 - Step 6: Final answer
x = 1,339,207.87
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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.