Finding the Fourth Proportional to 2,136,745.20, 3,205,117.80 and 620,425.20
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Solution
The fourth proportional to 2,136,745.20, 3,205,117.80 and 620,425.20 is: 930,637.80
Step by Step Solution
- Step 1: Write the proportion equation
2,136,745.20 : 3,205,117.80 = 620,425.20 : x - Step 2: Convert to fraction form
2,136,745.20/3,205,117.80 = 620,425.20/x - Step 3: Cross multiply
2,136,745.20x = 3,205,117.80 × 620,425.20 - Step 4: Simplify right side
2,136,745.20x = 1,988,535,852,088.56 - Step 5: Solve for x
x = 1,988,535,852,088.56/2,136,745.20 - Step 6: Final answer
x = 930,637.80
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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.