Finding the Fourth Proportional to 1,368,900.24, 2,053,643.40 and 409,431.12
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Solution
The fourth proportional to 1,368,900.24, 2,053,643.40 and 409,431.12 is: 614,234.33
Step by Step Solution
- Step 1: Write the proportion equation
1,368,900.24 : 2,053,643.40 = 409,431.12 : x - Step 2: Convert to fraction form
1,368,900.24/2,053,643.40 = 409,431.12/x - Step 3: Cross multiply
1,368,900.24x = 2,053,643.40 × 409,431.12 - Step 4: Simplify right side
1,368,900.24x = 840,825,517,342.61 - Step 5: Solve for x
x = 840,825,517,342.61/1,368,900.24 - Step 6: Final answer
x = 614,234.33
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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.