Finding the Fourth Proportional to 3,240,474.53, 4,471,982.75 and 1,863,816.04
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Solution
The fourth proportional to 3,240,474.53, 4,471,982.75 and 1,863,816.04 is: 2,572,139.70
Step by Step Solution
- Step 1: Write the proportion equation
3,240,474.53 : 4,471,982.75 = 1,863,816.04 : x - Step 2: Convert to fraction form
3,240,474.53/4,471,982.75 = 1,863,816.04/x - Step 3: Cross multiply
3,240,474.53x = 4,471,982.75 × 1,863,816.04 - Step 4: Simplify right side
3,240,474.53x = 8,334,953,180,053.31 - Step 5: Solve for x
x = 8,334,953,180,053.31/3,240,474.53 - Step 6: Final answer
x = 2,572,139.70
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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.