Finding the Fourth Proportional to 1,489,146.12, 2,234,841.84 and 1,090,807.56
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Solution
The fourth proportional to 1,489,146.12, 2,234,841.84 and 1,090,807.56 is: 1,637,033.69
Step by Step Solution
- Step 1: Write the proportion equation
1,489,146.12 : 2,234,841.84 = 1,090,807.56 : x - Step 2: Convert to fraction form
1,489,146.12/2,234,841.84 = 1,090,807.56/x - Step 3: Cross multiply
1,489,146.12x = 2,234,841.84 × 1,090,807.56 - Step 4: Simplify right side
1,489,146.12x = 2,437,782,374,476.31 - Step 5: Solve for x
x = 2,437,782,374,476.31/1,489,146.12 - Step 6: Final answer
x = 1,637,033.69
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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.