Finding the Fourth Proportional to 2,172,835.20, 3,259,252.80 and 1,612,963.20
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Solution
The fourth proportional to 2,172,835.20, 3,259,252.80 and 1,612,963.20 is: 2,419,444.80
Step by Step Solution
- Step 1: Write the proportion equation
2,172,835.20 : 3,259,252.80 = 1,612,963.20 : x - Step 2: Convert to fraction form
2,172,835.20/3,259,252.80 = 1,612,963.20/x - Step 3: Cross multiply
2,172,835.20x = 3,259,252.80 × 1,612,963.20 - Step 4: Simplify right side
2,172,835.20x = 5,257,054,825,896.96 - Step 5: Solve for x
x = 5,257,054,825,896.96/2,172,835.20 - Step 6: Final answer
x = 2,419,444.80
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1.5x scale
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.