Finding the Fourth Proportional to 2,129,266.23, 2,939,441.16 and 1,313,919.01
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Solution
The fourth proportional to 2,129,266.23, 2,939,441.16 and 1,313,919.01 is: 1,813,858.49
Step by Step Solution
- Step 1: Write the proportion equation
2,129,266.23 : 2,939,441.16 = 1,313,919.01 : x - Step 2: Convert to fraction form
2,129,266.23/2,939,441.16 = 1,313,919.01/x - Step 3: Cross multiply
2,129,266.23x = 2,939,441.16 × 1,313,919.01 - Step 4: Simplify right side
2,129,266.23x = 3,862,187,618,900.45 - Step 5: Solve for x
x = 3,862,187,618,900.45/2,129,266.23 - Step 6: Final answer
x = 1,813,858.49
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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.