Finding the Fourth Proportional to 3,418,396.28, 4,716,862.81 and 1,967,811.43
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Solution
The fourth proportional to 3,418,396.28, 4,716,862.81 and 1,967,811.43 is: 2,715,278.09
Step by Step Solution
- Step 1: Write the proportion equation
3,418,396.28 : 4,716,862.81 = 1,967,811.43 : x - Step 2: Convert to fraction form
3,418,396.28/4,716,862.81 = 1,967,811.43/x - Step 3: Cross multiply
3,418,396.28x = 4,716,862.81 × 1,967,811.43 - Step 4: Simplify right side
3,418,396.28x = 9,281,896,534,548.23 - Step 5: Solve for x
x = 9,281,896,534,548.23/3,418,396.28 - Step 6: Final answer
x = 2,715,278.09
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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.