Finding the Fourth Proportional to 3,428,977.99, 5,139,866.49 and 1,153,712.53
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Solution
The fourth proportional to 3,428,977.99, 5,139,866.49 and 1,153,712.53 is: 1,729,357.37
Step by Step Solution
- Step 1: Write the proportion equation
3,428,977.99 : 5,139,866.49 = 1,153,712.53 : x - Step 2: Convert to fraction form
3,428,977.99/5,139,866.49 = 1,153,712.53/x - Step 3: Cross multiply
3,428,977.99x = 5,139,866.49 × 1,153,712.53 - Step 4: Simplify right side
3,428,977.99x = 5,929,928,372,040.12 - Step 5: Solve for x
x = 5,929,928,372,040.12/3,428,977.99 - Step 6: Final answer
x = 1,729,357.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.