Finding the Fourth Proportional to 2,124,386.09, 3,189,357.08 and 1,261,396.80
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Solution
The fourth proportional to 2,124,386.09, 3,189,357.08 and 1,261,396.80 is: 1,893,744.66
Step by Step Solution
- Step 1: Write the proportion equation
2,124,386.09 : 3,189,357.08 = 1,261,396.80 : x - Step 2: Convert to fraction form
2,124,386.09/3,189,357.08 = 1,261,396.80/x - Step 3: Cross multiply
2,124,386.09x = 3,189,357.08 × 1,261,396.80 - Step 4: Simplify right side
2,124,386.09x = 4,023,044,813,192.60 - Step 5: Solve for x
x = 4,023,044,813,192.60/2,124,386.09 - Step 6: Final answer
x = 1,893,744.66
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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.