Finding the Fourth Proportional to 1,889,189.21, 2,607,107.01 and 1,029,747.62
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Solution
The fourth proportional to 1,889,189.21, 2,607,107.01 and 1,029,747.62 is: 1,421,065.83
Step by Step Solution
- Step 1: Write the proportion equation
1,889,189.21 : 2,607,107.01 = 1,029,747.62 : x - Step 2: Convert to fraction form
1,889,189.21/2,607,107.01 = 1,029,747.62/x - Step 3: Cross multiply
1,889,189.21x = 2,607,107.01 × 1,029,747.62 - Step 4: Simplify right side
1,889,189.21x = 2,684,662,245,150.58 - Step 5: Solve for x
x = 2,684,662,245,150.58/1,889,189.21 - Step 6: Final answer
x = 1,421,065.83
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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.