Finding the Fourth Proportional to 1,515,496.24, 2,090,450.80 and 1,080,054.56
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Solution
The fourth proportional to 1,515,496.24, 2,090,450.80 and 1,080,054.56 is: 1,489,809.65
Step by Step Solution
- Step 1: Write the proportion equation
1,515,496.24 : 2,090,450.80 = 1,080,054.56 : x - Step 2: Convert to fraction form
1,515,496.24/2,090,450.80 = 1,080,054.56/x - Step 3: Cross multiply
1,515,496.24x = 2,090,450.80 × 1,080,054.56 - Step 4: Simplify right side
1,515,496.24x = 2,257,800,918,995.65 - Step 5: Solve for x
x = 2,257,800,918,995.65/1,515,496.24 - Step 6: Final answer
x = 1,489,809.65
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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.