Finding the Fourth Proportional to 1,731,721.26, 2,388,228.21 and 1,087,201.56
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Solution
The fourth proportional to 1,731,721.26, 2,388,228.21 and 1,087,201.56 is: 1,499,366.84
Step by Step Solution
- Step 1: Write the proportion equation
1,731,721.26 : 2,388,228.21 = 1,087,201.56 : x - Step 2: Convert to fraction form
1,731,721.26/2,388,228.21 = 1,087,201.56/x - Step 3: Cross multiply
1,731,721.26x = 2,388,228.21 × 1,087,201.56 - Step 4: Simplify right side
1,731,721.26x = 2,596,485,435,548.01 - Step 5: Solve for x
x = 2,596,485,435,548.01/1,731,721.26 - Step 6: Final answer
x = 1,499,366.84
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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.