Finding the Fourth Proportional to 3,420,789.84, 4,720,368.56 and 2,315,974.14
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Solution
The fourth proportional to 3,420,789.84, 4,720,368.56 and 2,315,974.14 is: 3,195,826.70
Step by Step Solution
- Step 1: Write the proportion equation
3,420,789.84 : 4,720,368.56 = 2,315,974.14 : x - Step 2: Convert to fraction form
3,420,789.84/4,720,368.56 = 2,315,974.14/x - Step 3: Cross multiply
3,420,789.84x = 4,720,368.56 × 2,315,974.14 - Step 4: Simplify right side
3,420,789.84x = 10,932,251,504,649.17 - Step 5: Solve for x
x = 10,932,251,504,649.17/3,420,789.84 - Step 6: Final answer
x = 3,195,826.70
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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.