Finding the Fourth Proportional to 3,437,205.99, 4,742,817.48 and 1,986,621.81
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Solution
The fourth proportional to 3,437,205.99, 4,742,817.48 and 1,986,621.81 is: 2,741,233.63
Step by Step Solution
- Step 1: Write the proportion equation
3,437,205.99 : 4,742,817.48 = 1,986,621.81 : x - Step 2: Convert to fraction form
3,437,205.99/4,742,817.48 = 1,986,621.81/x - Step 3: Cross multiply
3,437,205.99x = 4,742,817.48 × 1,986,621.81 - Step 4: Simplify right side
3,437,205.99x = 9,422,184,646,617.24 - Step 5: Solve for x
x = 9,422,184,646,617.24/3,437,205.99 - Step 6: Final answer
x = 2,741,233.63
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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.