Finding the Fourth Proportional to 2,542,774.40, 3,509,091.95 and 1,381,220.29
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Solution
The fourth proportional to 2,542,774.40, 3,509,091.95 and 1,381,220.29 is: 1,906,118.37
Step by Step Solution
- Step 1: Write the proportion equation
2,542,774.40 : 3,509,091.95 = 1,381,220.29 : x - Step 2: Convert to fraction form
2,542,774.40/3,509,091.95 = 1,381,220.29/x - Step 3: Cross multiply
2,542,774.40x = 3,509,091.95 × 1,381,220.29 - Step 4: Simplify right side
2,542,774.40x = 4,846,828,998,295.93 - Step 5: Solve for x
x = 4,846,828,998,295.93/2,542,774.40 - Step 6: Final answer
x = 1,906,118.37
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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.