Finding the Fourth Proportional to 2,840,893.12, 3,920,406.40 and 1,551,733.12
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Solution
The fourth proportional to 2,840,893.12, 3,920,406.40 and 1,551,733.12 is: 2,141,377.45
Step by Step Solution
- Step 1: Write the proportion equation
2,840,893.12 : 3,920,406.40 = 1,551,733.12 : x - Step 2: Convert to fraction form
2,840,893.12/3,920,406.40 = 1,551,733.12/x - Step 3: Cross multiply
2,840,893.12x = 3,920,406.40 × 1,551,733.12 - Step 4: Simplify right side
2,840,893.12x = 6,083,424,454,739.97 - Step 5: Solve for x
x = 6,083,424,454,739.97/2,840,893.12 - Step 6: Final answer
x = 2,141,377.45
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1.5x scale
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.